diff --git a/agrirouter-sdk-java-api/src/main/kotlin/com/dke/data/agrirouter/api/dto/onboard/OnboardingError.kt b/agrirouter-sdk-java-api/src/main/kotlin/com/dke/data/agrirouter/api/dto/onboard/OnboardingError.kt
index f0aa1c7c..6cba65e9 100644
--- a/agrirouter-sdk-java-api/src/main/kotlin/com/dke/data/agrirouter/api/dto/onboard/OnboardingError.kt
+++ b/agrirouter-sdk-java-api/src/main/kotlin/com/dke/data/agrirouter/api/dto/onboard/OnboardingError.kt
@@ -6,12 +6,12 @@ import com.fasterxml.jackson.annotation.JsonIgnoreProperties
 class OnboardingError {
     class Error {
         class SubError {
-            var code: Int = 0
+            var code: String = ""
             lateinit var message: String
             lateinit var target: String
         }
 
-        var code: Int = 0
+        var code: String = ""
         lateinit var message: String
         lateinit var target: String
         lateinit var details: Array<SubError>
@@ -24,7 +24,7 @@ class OnboardingError {
         fun unknownError(error: String): OnboardingError {
             val onboardingError = OnboardingError()
             onboardingError.error = Error()
-            onboardingError.error.code = -1
+            onboardingError.error.code = "UNKNOWN_ERROR"
             onboardingError.error.message = "Unknown error occurred, the original error message is: $error"
             onboardingError.error.target = "Unknown target"
             onboardingError.error.details = arrayOf()
diff --git a/agrirouter-sdk-java-api/src/main/kotlin/com/dke/data/agrirouter/api/dto/revoke/RevokingError.kt b/agrirouter-sdk-java-api/src/main/kotlin/com/dke/data/agrirouter/api/dto/revoke/RevokingError.kt
index 0162bb9b..d3cd715f 100644
--- a/agrirouter-sdk-java-api/src/main/kotlin/com/dke/data/agrirouter/api/dto/revoke/RevokingError.kt
+++ b/agrirouter-sdk-java-api/src/main/kotlin/com/dke/data/agrirouter/api/dto/revoke/RevokingError.kt
@@ -4,26 +4,27 @@ import com.fasterxml.jackson.annotation.JsonIgnoreProperties
 
 @JsonIgnoreProperties(ignoreUnknown = true)
 class RevokingError {
-    class Error{
+    class Error {
         class SubError {
-            var code: Int = 0
+            var code: String = ""
             lateinit var message: String
             lateinit var target: String
         }
-        var code:Int = 0
-        lateinit var message:String
-        lateinit var target:String
-        lateinit var details:Array<SubError>
+
+        var code: String = ""
+        lateinit var message: String
+        lateinit var target: String
+        lateinit var details: Array<SubError>
     }
 
-    lateinit var error:Error
+    lateinit var error: Error
 
     companion object {
         @JvmStatic
         fun unknownError(error: String): RevokingError {
             val revokingError = RevokingError()
             revokingError.error = Error()
-            revokingError.error.code = -1
+            revokingError.error.code = "UNKNOWN_ERROR"
             revokingError.error.message = "Unknown error occurred, the original error message is: $error"
             revokingError.error.target = "Unknown target"
             revokingError.error.details = arrayOf()