diff --git a/docs/config-app.md b/docs/config-app.md
index 327878d6a8f..4bd9f0e793b 100644
--- a/docs/config-app.md
+++ b/docs/config-app.md
@@ -55,6 +55,7 @@ There are several typical keys:
 - `adapters.<BIDDER_NAME>.endpoint` - the url for submitting bids.
 - `adapters.<BIDDER_NAME>.usersync-url` - the url for synchronizing UIDs cookie.
 - `adapters.<BIDDER_NAME>.pbs-enforces-gdpr` - indicates if pbs server provides gdpr support for bidder or bidder will handle it itself.
+- `adapters.<BIDDER_NAME>.deprecated-names` - comma separated deprecated names of bidder.
 
 But feel free to add additional bidder's specific options.
 
diff --git a/src/main/java/org/prebid/server/auction/ExchangeService.java b/src/main/java/org/prebid/server/auction/ExchangeService.java
index a40466fc31e..b67374dd0ba 100644
--- a/src/main/java/org/prebid/server/auction/ExchangeService.java
+++ b/src/main/java/org/prebid/server/auction/ExchangeService.java
@@ -246,8 +246,7 @@ private static Map<String, Map<String, BigDecimal>> currencyRates(ExtRequestTarg
      * NOTE: the return list will only contain entries for bidders that both have the extension field in at least one
      * {@link Imp}, and are known to {@link BidderCatalog} or aliases from {@link BidRequest}.ext.prebid.aliases.
      */
-    private Future<List<BidderRequest>> extractBidderRequests(BidRequest bidRequest,
-                                                              UidsCookie uidsCookie,
+    private Future<List<BidderRequest>> extractBidderRequests(BidRequest bidRequest, UidsCookie uidsCookie,
                                                               Map<String, String> aliases,
                                                               Timeout timeout) {
         // sanity check: discard imps without extension
@@ -1065,15 +1064,19 @@ private CacheAsset toCacheAsset(String cacheId) {
      * Creates {@link ExtBidResponse} populated with response time, errors and debug info (if requested) from all
      * bidders
      */
-    private static ExtBidResponse toExtBidResponse(List<BidderResponse> results, BidRequest bidRequest) {
+    private ExtBidResponse toExtBidResponse(List<BidderResponse> results, BidRequest bidRequest) {
         final Map<String, List<ExtHttpCall>> httpCalls = Objects.equals(bidRequest.getTest(), 1)
                 ? results.stream().collect(
                 Collectors.toMap(BidderResponse::getBidder, r -> ListUtils.emptyIfNull(r.getSeatBid().getHttpCalls())))
                 : null;
         final ExtResponseDebug extResponseDebug = httpCalls != null ? ExtResponseDebug.of(httpCalls, bidRequest) : null;
 
-        final Map<String, List<String>> errors = results.stream()
-                .collect(Collectors.toMap(BidderResponse::getBidder, r -> messages(r.getSeatBid().getErrors())));
+        final Map<String, List<String>> errors = new HashMap<>();
+        for (BidderResponse bidderResponse : results) {
+            errors.put(bidderResponse.getBidder(), messages(bidderResponse.getSeatBid().getErrors()));
+        }
+
+        errors.putAll(extractDeprecatedBiddersErrors(bidRequest));
 
         final Map<String, Integer> responseTimeMillis = results.stream()
                 .collect(Collectors.toMap(BidderResponse::getBidder, BidderResponse::getResponseTime));
@@ -1081,6 +1084,16 @@ private static ExtBidResponse toExtBidResponse(List<BidderResponse> results, Bid
         return ExtBidResponse.of(extResponseDebug, errors, responseTimeMillis, null);
     }
 
+    private Map<String, List<String>> extractDeprecatedBiddersErrors(BidRequest bidRequest) {
+        return bidRequest.getImp().stream()
+                .filter(imp -> imp.getExt() != null)
+                .flatMap(imp -> asStream(imp.getExt().fieldNames()))
+                .distinct()
+                .filter(bidderCatalog::isDeprecatedName)
+                .collect(Collectors.toMap(Function.identity(),
+                        bidder -> Collections.singletonList(bidderCatalog.errorForDeprecatedName(bidder))));
+    }
+
     private static List<String> messages(List<BidderError> errors) {
         return CollectionUtils.emptyIfNull(errors).stream().map(BidderError::getMessage).collect(Collectors.toList());
     }
diff --git a/src/main/java/org/prebid/server/bidder/BidderCatalog.java b/src/main/java/org/prebid/server/bidder/BidderCatalog.java
index ce49c241a50..febc1e2dc24 100644
--- a/src/main/java/org/prebid/server/bidder/BidderCatalog.java
+++ b/src/main/java/org/prebid/server/bidder/BidderCatalog.java
@@ -1,5 +1,6 @@
 package org.prebid.server.bidder;
 
+import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
@@ -13,11 +14,20 @@
  */
 public class BidderCatalog {
 
+    private static final String ERROR_MESSAGE_TEMPLATE_FOR_DEPRECATED = "%s has been deprecated and is no "
+            + "longer available. Use %s instead.";
+
     private final Map<String, BidderDeps> bidderDepsMap;
 
+    private final Map<String, String> deprecatedNameToError = new HashMap<>();
+
     public BidderCatalog(List<BidderDeps> bidderDeps) {
         bidderDepsMap = Objects.requireNonNull(bidderDeps).stream()
                 .collect(Collectors.toMap(BidderDeps::getName, Function.identity()));
+
+        bidderDeps.forEach(deps ->
+                deprecatedNameToError.putAll(createErrorsForDeprecatedNames(deps.getDeprecatedNames(),
+                        deps.getName())));
     }
 
     /**
@@ -34,6 +44,19 @@ public boolean isValidName(String name) {
         return bidderDepsMap.containsKey(name);
     }
 
+    public boolean isDeprecatedName(String name) {
+        return deprecatedNameToError.containsKey(name);
+    }
+
+    public String errorForDeprecatedName(String name) {
+        return deprecatedNameToError.get(name);
+    }
+
+    private Map<String, String> createErrorsForDeprecatedNames(List<String> deprecatedNames, String name) {
+        return deprecatedNames.stream().collect(Collectors.toMap(deprecatedName -> deprecatedName,
+                deprecatedName -> String.format(ERROR_MESSAGE_TEMPLATE_FOR_DEPRECATED, deprecatedName, name)));
+    }
+
     /**
      * Tells if given bidder is enabled and ready for auction.
      */
diff --git a/src/main/java/org/prebid/server/bidder/BidderDeps.java b/src/main/java/org/prebid/server/bidder/BidderDeps.java
index 3d2c06bf085..b970735500b 100644
--- a/src/main/java/org/prebid/server/bidder/BidderDeps.java
+++ b/src/main/java/org/prebid/server/bidder/BidderDeps.java
@@ -3,6 +3,8 @@
 import lombok.AllArgsConstructor;
 import lombok.Value;
 
+import java.util.List;
+
 /**
  * Gathers all dependencies for bidder.
  */
@@ -18,6 +20,8 @@ public class BidderDeps {
      */
     String name;
 
+    List<String> deprecatedNames;
+
     /**
      * Bidder's meta information is used in {@link org.prebid.server.handler.info.BidderDetailsHandler} handler
      */
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/AdformConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/AdformConfiguration.java
index d6b85ac53f6..d505c6d193c 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/AdformConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/AdformConfiguration.java
@@ -17,6 +17,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class AdformConfiguration extends BidderConfiguration {
 
@@ -37,6 +39,9 @@ public class AdformConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.adform.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps adformBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -47,6 +52,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new AdformMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/AdkernelAdnConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/AdkernelAdnConfiguration.java
index 9524d66222c..0c905a1f870 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/AdkernelAdnConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/AdkernelAdnConfiguration.java
@@ -16,6 +16,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class AdkernelAdnConfiguration extends BidderConfiguration {
 
@@ -36,6 +38,9 @@ public class AdkernelAdnConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.adkerneladn.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps adkernelAdnBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -46,6 +51,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new AdkernelAdnMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/AdtelligentConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/AdtelligentConfiguration.java
index dc916a35525..e0fe3faccb6 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/AdtelligentConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/AdtelligentConfiguration.java
@@ -16,6 +16,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class AdtelligentConfiguration extends BidderConfiguration {
 
@@ -36,11 +38,19 @@ public class AdtelligentConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.adtelligent.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Override
     protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Bean
     BidderDeps adtelligentBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/AppnexusConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/AppnexusConfiguration.java
index daf72f89832..54b8c4e623d 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/AppnexusConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/AppnexusConfiguration.java
@@ -17,6 +17,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class AppnexusConfiguration extends BidderConfiguration {
 
@@ -37,6 +39,9 @@ public class AppnexusConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.appnexus.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps appnexusBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -47,6 +52,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new AppnexusMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/BeachfrontConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/BeachfrontConfiguration.java
index 425c1f423e2..b1488ab5bb2 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/BeachfrontConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/BeachfrontConfiguration.java
@@ -16,6 +16,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class BeachfrontConfiguration extends BidderConfiguration {
 
@@ -39,6 +41,9 @@ public class BeachfrontConfiguration extends BidderConfiguration {
     @Value("${adapters.beachfront.pbs-enforces-gdpr}")
     private boolean pbsEnforcesGdpr;
 
+    @Value("${adapters.beachfront.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps beachfrontBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -49,6 +54,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new BeachfrontMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/BidderConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/BidderConfiguration.java
index e5059bda47c..f5de7def303 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/BidderConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/BidderConfiguration.java
@@ -11,6 +11,8 @@
 import org.prebid.server.bidder.Usersyncer;
 import org.prebid.server.vertx.http.HttpClient;
 
+import java.util.List;
+
 public abstract class BidderConfiguration {
 
     private static final String ERROR_MESSAGE_TEMPLATE_FOR_DISABLED = "%s is not configured properly on this "
@@ -33,11 +35,13 @@ protected BidderDeps bidderDeps(HttpClient httpClient, HttpAdapterConnector http
         final BidderRequester bidderRequester = createBidderRequester(httpClient, bidder, adapter, usersyncer,
                 httpAdapterConnector);
 
-        return BidderDeps.of(bidderName, metaInfo, usersyncer, bidder, adapter, bidderRequester);
+        return BidderDeps.of(bidderName, deprecatedNames(), metaInfo, usersyncer, bidder, adapter, bidderRequester);
     }
 
     protected abstract String bidderName();
 
+    protected abstract List<String> deprecatedNames();
+
     protected abstract MetaInfo createMetaInfo();
 
     protected abstract Usersyncer createUsersyncer();
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/BrightrollConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/BrightrollConfiguration.java
index ad5ee4b9f93..0e537a31495 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/BrightrollConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/BrightrollConfiguration.java
@@ -16,6 +16,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class BrightrollConfiguration extends BidderConfiguration {
 
@@ -36,6 +38,9 @@ public class BrightrollConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.brightroll.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps brightrollBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -46,6 +51,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new BrightrollMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/ConversantConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/ConversantConfiguration.java
index e0e0826cf20..ef22f28fa4d 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/ConversantConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/ConversantConfiguration.java
@@ -17,6 +17,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class ConversantConfiguration extends BidderConfiguration {
 
@@ -37,6 +39,9 @@ public class ConversantConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.conversant.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps conversantBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -47,6 +52,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new ConversantMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/EplanningConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/EplanningConfiguration.java
index 4ca73b842fb..28b4063d0c4 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/EplanningConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/EplanningConfiguration.java
@@ -16,6 +16,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class EplanningConfiguration extends BidderConfiguration {
 
@@ -36,11 +38,19 @@ public class EplanningConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.eplanning.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Override
     protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Bean
     BidderDeps eplanningBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/FacebookConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/FacebookConfiguration.java
index ceb0f08fec4..9a8c42bd70f 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/FacebookConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/FacebookConfiguration.java
@@ -18,6 +18,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class FacebookConfiguration extends BidderConfiguration {
 
@@ -41,6 +43,9 @@ public class FacebookConfiguration extends BidderConfiguration {
     @Value("${adapters.facebook.platformId:#{null}}")
     private String platformId;
 
+    @Value("${adapters.facebook.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps facebookBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         if (enabled && (usersyncUrl == null || platformId == null)) {
@@ -56,6 +61,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new FacebookMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/IxConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/IxConfiguration.java
index c38a1bfd16c..def29f431a7 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/IxConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/IxConfiguration.java
@@ -17,6 +17,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class IxConfiguration extends BidderConfiguration {
 
@@ -34,6 +36,9 @@ public class IxConfiguration extends BidderConfiguration {
     @Value("${adapters.ix.pbs-enforces-gdpr}")
     private boolean pbsEnforcesGdpr;
 
+    @Value("${adapters.ix.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps ixBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         if (enabled && endpoint == null) {
@@ -49,6 +54,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new IxMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/LifestreetConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/LifestreetConfiguration.java
index be441ffbd13..e720dc8e7bc 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/LifestreetConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/LifestreetConfiguration.java
@@ -17,6 +17,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class LifestreetConfiguration extends BidderConfiguration {
 
@@ -37,6 +39,9 @@ public class LifestreetConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.lifestreet.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps lifestreetBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -47,6 +52,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new LifestreetMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/OpenxConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/OpenxConfiguration.java
index ca3bfc380c4..0f62c99ba0e 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/OpenxConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/OpenxConfiguration.java
@@ -16,6 +16,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class OpenxConfiguration extends BidderConfiguration {
 
@@ -36,6 +38,9 @@ public class OpenxConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.openx.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps openxBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -46,6 +51,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new OpenxMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/PubmaticConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/PubmaticConfiguration.java
index 1d2cc1da34b..40d5926d25a 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/PubmaticConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/PubmaticConfiguration.java
@@ -17,6 +17,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class PubmaticConfiguration extends BidderConfiguration {
 
@@ -37,6 +39,9 @@ public class PubmaticConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.pubmatic.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps pubmaticBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -47,6 +52,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new PubmaticMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/PulsepointConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/PulsepointConfiguration.java
index 09d76fe1b6e..892d24f67e7 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/PulsepointConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/PulsepointConfiguration.java
@@ -17,6 +17,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class PulsepointConfiguration extends BidderConfiguration {
 
@@ -37,6 +39,9 @@ public class PulsepointConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.pulsepoint.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps pulsepointBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -47,6 +52,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new PulsepointMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/RubiconConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/RubiconConfiguration.java
index 4ca05555136..231730ff60b 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/RubiconConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/RubiconConfiguration.java
@@ -17,6 +17,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class RubiconConfiguration extends BidderConfiguration {
 
@@ -40,6 +42,9 @@ public class RubiconConfiguration extends BidderConfiguration {
     @Value("${adapters.rubicon.XAPI.Password}")
     private String password;
 
+    @Value("${adapters.rubicon.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps rubiconBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -50,6 +55,11 @@ public String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     public MetaInfo createMetaInfo() {
         return new RubiconMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/SomoaudienceConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/SomoaudienceConfiguration.java
index e8a4041faa7..4ff33abebc7 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/SomoaudienceConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/SomoaudienceConfiguration.java
@@ -16,6 +16,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class SomoaudienceConfiguration extends BidderConfiguration {
 
@@ -36,6 +38,9 @@ public class SomoaudienceConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.somoaudience.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps somoaudienceBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -46,6 +51,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new SomoaudienceMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/SovrnConfiguration.java b/src/main/java/org/prebid/server/spring/config/bidder/SovrnConfiguration.java
index 5c135dc6ee3..b093fad77b0 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/SovrnConfiguration.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/SovrnConfiguration.java
@@ -17,6 +17,8 @@
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 @Configuration
 public class SovrnConfiguration extends BidderConfiguration {
 
@@ -37,6 +39,9 @@ public class SovrnConfiguration extends BidderConfiguration {
     @Value("${external-url}")
     private String externalUrl;
 
+    @Value("${adapters.sovrn.deprecated-names}")
+    private List<String> deprecatedNames;
+
     @Bean
     BidderDeps sovrnBidderDeps(HttpClient httpClient, HttpAdapterConnector httpAdapterConnector) {
         return bidderDeps(httpClient, httpAdapterConnector);
@@ -47,6 +52,11 @@ protected String bidderName() {
         return BIDDER_NAME;
     }
 
+    @Override
+    protected List<String> deprecatedNames() {
+        return deprecatedNames;
+    }
+
     @Override
     protected MetaInfo createMetaInfo() {
         return new SovrnMetaInfo(enabled, pbsEnforcesGdpr);
diff --git a/src/main/java/org/prebid/server/validation/RequestValidator.java b/src/main/java/org/prebid/server/validation/RequestValidator.java
index 601bd4abc5e..55a9d533cd1 100644
--- a/src/main/java/org/prebid/server/validation/RequestValidator.java
+++ b/src/main/java/org/prebid/server/validation/RequestValidator.java
@@ -547,7 +547,7 @@ private void validateImpBidderExtName(int impIndex, Map.Entry<String, JsonNode>
                 throw new ValidationException("request.imp[%d].ext.%s failed validation.\n%s", impIndex,
                         bidderName, messages.stream().collect(Collectors.joining("\n")));
             }
-        } else {
+        } else if (!bidderCatalog.isDeprecatedName(bidderName)) {
             throw new ValidationException(
                     "request.imp[%d].ext contains unknown bidder: %s", impIndex, bidderName);
         }
diff --git a/src/main/resources/application.yaml b/src/main/resources/application.yaml
index 92270f4941c..58ec9812b9c 100644
--- a/src/main/resources/application.yaml
+++ b/src/main/resources/application.yaml
@@ -38,21 +38,25 @@ adapters:
     endpoint: http://adx.adform.net/adx
     usersync-url: //cm.adform.net/cookie?redirect_url=
     pbs-enforces-gdpr: true
+    deprecated-names:
   adkerneladn:
     enabled: false
     endpoint: http://tag.adkernel.com/rtbpub?account=
     usersync-url: https://tag.adkernel.com/syncr?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&r=
     pbs-enforces-gdpr: true
+    deprecated-names:
   adtelligent:
     enabled: false
     endpoint: http://hb.adtelligent.com/auction
     usersync-url: //sync.adtelligent.com/csync?t=p&ep=0&redir=
     pbs-enforces-gdpr: true
+    deprecated-names:
   appnexus:
     enabled: false
     endpoint: http://ib.adnxs.com/openrtb2
     usersync-url: //ib.adnxs.com/getuid?
     pbs-enforces-gdpr: true
+    deprecated-names:
   beachfront:
     enabled: false
     banner-endpoint: https://display.bfmio.com/prebid_display
@@ -60,26 +64,31 @@ adapters:
     usersync-url: //sync.bfmio.com/syncb?pid=
     platform-id: 142
     pbs-enforces-gdpr: true
+    deprecated-names:
   brightroll:
     enabled: false
     endpoint: http://east-bid.ybp.yahoo.com/bid/appnexuspbs
     usersync-url: http://east-bid.ybp.yahoo.com/sync/appnexuspbs?gdpr={{gdpr}}&euconsent={{gdpr_consent}}&url=
     pbs-enforces-gdpr: true
+    deprecated-names:
   conversant:
     enabled: false
     endpoint: http://api.hb.ad.cpe.dotomi.com/s2s/header/24
     usersync-url: //prebid-match.dotomi.com/prebid/match?rurl=
     pbs-enforces-gdpr: true
+    deprecated-names:
   eplanning:
     enabled: false
     endpoint: http://ads.us.e-planning.net/dsp/obr/1
     usersync-url: http://sync.e-planning.net/um?uid
     pbs-enforces-gdpr: true
+    deprecated-names:
   facebook:
     enabled: false
     endpoint: https://an.facebook.com/placementbid.ortb
     nonSecureEndpoint: http://an.facebook.com/placementbid.ortb
     pbs-enforces-gdpr: true
+    deprecated-names:
   ix:
     enabled: false
     endpoint: http://appnexus-us-east.lb.indexww.com/transbidder?p=184932
@@ -91,36 +100,43 @@ adapters:
     endpoint: https://prebid.s2s.lfstmedia.com/adrequest
     usersync-url: //ads.lfstmedia.com/idsync/137062?synced=1&ttl=1s&rurl=
     pbs-enforces-gdpr: true
+    deprecated-names:
   openx:
     enabled: false
     endpoint: http://rtb.openx.net/prebid
     usersync-url: https://rtb.openx.net/sync/prebid?r=
     pbs-enforces-gdpr: true
+    deprecated-names:
   pubmatic:
     enabled: false
     endpoint: http://hbopenbid.pubmatic.com/translator?source=prebid-server
     usersync-url: //ads.pubmatic.com/AdServer/js/user_sync.html?predirect=
     pbs-enforces-gdpr: true
+    deprecated-names:
   pulsepoint:
     enabled: false
     endpoint: http://bid.contextweb.com/header/s/ortb/prebid-s2s
     usersync-url: //bh.contextweb.com/rtset?pid=561205&ev=1&rurl=
     pbs-enforces-gdpr: true
+    deprecated-names:
   rubicon:
     enabled: false
     endpoint: http://exapi-us-east.rubiconproject.com/a/api/exchange.json
     usersync-url: https://pixel.rubiconproject.com/exchange/sync.php?p=prebid&gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}
     pbs-enforces-gdpr: true
+    deprecated-names:
   somoaudience:
     enabled: false
     endpoint: http://publisher-east.mobileadtrading.com/rtb/bid
     usersync-url: //publisher-east.mobileadtrading.com/usersync?ru=
     pbs-enforces-gdpr: true
+    deprecated-names:
   sovrn:
     enabled: false
     endpoint: http://ap.lijit.com/rtb/bid?src=prebid_server
     usersync-url: //ap.lijit.com/pixel?
     pbs-enforces-gdpr: true
+    deprecated-names:
 metrics:
   metricType: flushingCounter
   accounts:
diff --git a/src/test/java/org/prebid/server/auction/ExchangeServiceTest.java b/src/test/java/org/prebid/server/auction/ExchangeServiceTest.java
index 090af977de3..53b09d54d25 100644
--- a/src/test/java/org/prebid/server/auction/ExchangeServiceTest.java
+++ b/src/test/java/org/prebid/server/auction/ExchangeServiceTest.java
@@ -80,6 +80,7 @@
 import java.time.Clock;
 import java.time.Instant;
 import java.time.ZoneId;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -202,11 +203,31 @@ public void shouldTolerateImpWithUnknownBidderInExtension() {
 
         // then
         verify(bidderCatalog).isValidName(eq("invalid"));
-        verifyNoMoreInteractions(bidderCatalog);
+        verify(bidderCatalog).isDeprecatedName(eq("invalid"));
         verifyZeroInteractions(bidderRequester);
         assertThat(bidResponse).isNotNull();
     }
 
+    @Test
+    public void shouldProcessRequestAndAddErrorAboutDeprecatedBidder() {
+        //given
+        final String invalidBidderName = "invalid";
+
+        given(bidderCatalog.isValidName(invalidBidderName)).willReturn(false);
+        given(bidderCatalog.isDeprecatedName(invalidBidderName)).willReturn(true);
+        given(bidderCatalog.errorForDeprecatedName(invalidBidderName)).willReturn("invalid has been deprecated and is no longer available. Use valid instead.");
+
+        final BidRequest bidRequest = givenBidRequest(givenSingleImp(singletonMap(invalidBidderName, 0)));
+
+        //when
+        final BidResponse bidResponse = exchangeService.holdAuction(bidRequest, uidsCookie, timeout, metricsContext).result();
+
+        //then
+        assertThat(bidResponse.getExt()).isEqualTo(mapper.valueToTree(ExtBidResponse.of(null,
+                Collections.singletonMap(invalidBidderName, Collections.singletonList("invalid has been deprecated and is no longer available. Use valid instead.")),
+                new HashMap<>(), null)));
+    }
+
     @Test
     public void shouldTolerateMissingPrebidImpExtension() {
         // given
diff --git a/src/test/java/org/prebid/server/bidder/BidderCatalogTest.java b/src/test/java/org/prebid/server/bidder/BidderCatalogTest.java
index 412247a596a..d6a45b41145 100644
--- a/src/test/java/org/prebid/server/bidder/BidderCatalogTest.java
+++ b/src/test/java/org/prebid/server/bidder/BidderCatalogTest.java
@@ -6,7 +6,10 @@
 import org.mockito.junit.MockitoJUnit;
 import org.mockito.junit.MockitoRule;
 
+import java.util.Collections;
+
 import static java.util.Collections.emptyList;
+import static java.util.Collections.emptyMap;
 import static java.util.Collections.singletonList;
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -34,7 +37,7 @@ public class BidderCatalogTest {
     @Test
     public void isValidNameShouldReturnTrueForKnownBidder() {
         // given
-        bidderDeps = BidderDeps.of(BIDDER, null, null, null, null, null);
+        bidderDeps = BidderDeps.of(BIDDER, emptyList(), null, null, null, null, null);
         bidderCatalog = new BidderCatalog(singletonList(bidderDeps));
 
         // when and then
@@ -53,7 +56,7 @@ public void isValidNameShouldReturnFalseForUnknownBidder() {
     @Test
     public void metaInfoByNameShouldReturnMetaInfoForKnownBidder() {
         // given
-        bidderDeps = BidderDeps.of(BIDDER, metaInfo, null, null, null, null);
+        bidderDeps = BidderDeps.of(BIDDER, emptyList(), metaInfo, null, null, null, null);
         bidderCatalog = new BidderCatalog(singletonList(bidderDeps));
 
         // when and then
@@ -72,7 +75,7 @@ public void metaInfoByNameShouldReturnNullForUnknownBidder() {
     @Test
     public void usersyncerByNameShouldReturnUsersyncerForKnownBidder() {
         // given
-        bidderDeps = BidderDeps.of(BIDDER, null, usersyncer, null, null, null);
+        bidderDeps = BidderDeps.of(BIDDER, emptyList(), null, usersyncer, null, null, null);
         bidderCatalog = new BidderCatalog(singletonList(bidderDeps));
 
         // when and then
@@ -91,7 +94,7 @@ public void usersyncerByNameShouldReturnNullForUnknownBidder() {
     @Test
     public void bidderByNameShouldReturnBidderForKnownBidder() {
         // given
-        bidderDeps = BidderDeps.of(BIDDER, null, null, bidder, null, null);
+        bidderDeps = BidderDeps.of(BIDDER, emptyList(), null, null, bidder, null, null);
         bidderCatalog = new BidderCatalog(singletonList(bidderDeps));
 
         // when and then
@@ -110,7 +113,7 @@ public void bidderByNameShouldReturnNullForUnknownBidder() {
     @Test
     public void adapterByNameShouldReturnAdapterForKnownBidder() {
         // given
-        bidderDeps = BidderDeps.of(BIDDER, null, null, null, adapter, null);
+        bidderDeps = BidderDeps.of(BIDDER, emptyList(),null, null, null, adapter, null);
         bidderCatalog = new BidderCatalog(singletonList(bidderDeps));
 
         // when and then
@@ -129,7 +132,7 @@ public void adapterByNameShouldReturnNullForUnknownBidder() {
     @Test
     public void bidderRequesterByNameShouldReturnBidderRequesterForKnownBidder() {
         // given
-        bidderDeps = BidderDeps.of(BIDDER, null, null, null, null, bidderRequester);
+        bidderDeps = BidderDeps.of(BIDDER, emptyList(),null, null, null, null, bidderRequester);
         bidderCatalog = new BidderCatalog(singletonList(bidderDeps));
 
         // when and then
@@ -148,7 +151,7 @@ public void bidderRequesterByNameShouldReturnNullForUnknownBidder() {
     @Test
     public void isValidAdapterNameShouldReturnTrueIfNameIsValidAndAdapterIsDefined() {
         // given
-        bidderDeps = BidderDeps.of(BIDDER, null, null, null, adapter, null);
+        bidderDeps = BidderDeps.of(BIDDER, emptyList(),null, null, null, adapter, null);
         bidderCatalog = new BidderCatalog(singletonList(bidderDeps));
         // when and then
         assertThat(bidderCatalog.isValidAdapterName(BIDDER)).isTrue();
@@ -157,7 +160,7 @@ public void isValidAdapterNameShouldReturnTrueIfNameIsValidAndAdapterIsDefined()
     @Test
     public void isValidAdapterNameShouldReturnFalseIfNameIsInvalid() {
         // given
-        bidderDeps = BidderDeps.of("invalid", null, null, null, adapter, null);
+        bidderDeps = BidderDeps.of("invalid", emptyList(),null, null, null, adapter, null);
         bidderCatalog = new BidderCatalog(singletonList(bidderDeps));
         // when and then
         assertThat(bidderCatalog.isValidAdapterName(BIDDER)).isFalse();
@@ -166,7 +169,7 @@ public void isValidAdapterNameShouldReturnFalseIfNameIsInvalid() {
     @Test
     public void isValidAdapterNameShouldReturnFalseIfAdapterIsNotDefined() {
         // given
-        bidderDeps = BidderDeps.of(BIDDER, null, null, null, null, null);
+        bidderDeps = BidderDeps.of(BIDDER, emptyList(),null, null, null, null, null);
         bidderCatalog = new BidderCatalog(singletonList(bidderDeps));
         // when and then
         assertThat(bidderCatalog.isValidAdapterName(BIDDER)).isFalse();