diff --git a/src/main/java/org/breedinginsight/brapps/importer/services/processors/ExperimentProcessor.java b/src/main/java/org/breedinginsight/brapps/importer/services/processors/ExperimentProcessor.java
index d1210b138..ddea6296c 100644
--- a/src/main/java/org/breedinginsight/brapps/importer/services/processors/ExperimentProcessor.java
+++ b/src/main/java/org/breedinginsight/brapps/importer/services/processors/ExperimentProcessor.java
@@ -838,6 +838,12 @@ private void addObsVarsToDatasetDetails(PendingImportObject<BrAPIListDetails> pi
         BrAPIListDetails details = pio.getBrAPIObject();
         referencedTraits.forEach(trait -> {
             String id = Utilities.appendProgramKey(trait.getObservationVariableName(), program.getKey());
+
+            // Don't append the key if connected to a brapi service operating with legacy data(no appended program key)
+            if (trait.getFullName() == null) {
+                id = trait.getObservationVariableName();
+            }
+            
             if (!details.getData().contains(id) && ImportObjectState.EXISTING != pio.getState()) {
                 details.getData().add(id);
             }
@@ -1582,4 +1588,4 @@ private String seasonDbIdToYearFromDatabase(String seasonDbId, UUID programId) {
         Integer yearInt = (season == null) ? null : season.getYear();
         return (yearInt == null) ? "" : yearInt.toString();
     }
-}
\ No newline at end of file
+}
diff --git a/src/test/java/org/breedinginsight/brapi/v2/ExperimentControllerIntegrationTest.java b/src/test/java/org/breedinginsight/brapi/v2/ExperimentControllerIntegrationTest.java
index fb5f79f92..28cfd1c80 100644
--- a/src/test/java/org/breedinginsight/brapi/v2/ExperimentControllerIntegrationTest.java
+++ b/src/test/java/org/breedinginsight/brapi/v2/ExperimentControllerIntegrationTest.java
@@ -292,6 +292,7 @@ private List<Trait> createTraits(int numToCreate) {
             String varName = "tt_test_" + (i + 1);
             traits.add(Trait.builder()
                     .observationVariableName(varName)
+                    .fullName(varName)
                     .entity("Plant " + i)
                     .attribute("height " + i)
                     .traitDescription("test")