diff --git a/src/main/java/org/breedinginsight/brapps/importer/services/processors/GermplasmProcessor.java b/src/main/java/org/breedinginsight/brapps/importer/services/processors/GermplasmProcessor.java
index 0d514ee72..81d9bef93 100644
--- a/src/main/java/org/breedinginsight/brapps/importer/services/processors/GermplasmProcessor.java
+++ b/src/main/java/org/breedinginsight/brapps/importer/services/processors/GermplasmProcessor.java
@@ -326,10 +326,9 @@ public Map<String, ImportPreviewStatistics> process(ImportUpload upload, List<Br
         // Construct pedigree
         constructPedigreeString(importRows, mappedBrAPIImport, commit);
 
-        // Construct a dependency tree for POSTing order. Dependents on unique germplasm name, (<Name> [<Program Key> - <Accession Number>])
-        if (commit) {
-            createPostOrder();
-        }
+        // for commit:  Construct a dependency tree for POSTing order. Dependents on unique germplasm name, (<Name> [<Program Key> - <Accession Number>])
+        // for !commit: Validate for circular pedigree dependencies.
+        createPostOrder(commit);
 
         // Construct our response object
         return getStatisticsMap(importRows);
@@ -556,9 +555,18 @@ private void validatePedigree(Germplasm germplasm, Integer rowNumber, Validation
         }
     }
 
-    private void createPostOrder() {
+    /*
+    This will set the postOrder and validate for circular pedigree dependencies.
+     */
+    private void createPostOrder(boolean commit) {
+        Set<String> created = null;
         // Construct a dependency tree for POSTing order
-        Set<String> created = existingGermplasm.stream().map(BrAPIGermplasm::getGermplasmName).collect(Collectors.toSet());
+        if(commit){
+            created = existingGermplasm.stream().map(BrAPIGermplasm::getGermplasmName).collect(Collectors.toSet());
+        }
+        else {
+            created = existingGermplasm.stream().map(BrAPIGermplasm::getDefaultDisplayName).collect(Collectors.toSet());
+        }
 
         //todo this gets messy
 
@@ -569,7 +577,7 @@ private void createPostOrder() {
             for (BrAPIGermplasm germplasm : newGermplasmList) {
 
                 // If we've already planned this germplasm, skip
-                if (created.contains(germplasm.getGermplasmName())) {
+                if ( (commit && created.contains(germplasm.getGermplasmName())) || (!commit && created.contains(germplasm.getDefaultDisplayName())) ) {
                     continue;
                 }