diff --git a/TeachingRecordSystem/src/TeachingRecordSystem.Core/Jobs/SyncAllMqsFromCrmJob.cs b/TeachingRecordSystem/src/TeachingRecordSystem.Core/Jobs/SyncAllMqsFromCrmJob.cs
index 4db756d25..148d189f1 100644
--- a/TeachingRecordSystem/src/TeachingRecordSystem.Core/Jobs/SyncAllMqsFromCrmJob.cs
+++ b/TeachingRecordSystem/src/TeachingRecordSystem.Core/Jobs/SyncAllMqsFromCrmJob.cs
@@ -46,7 +46,7 @@ public async Task Execute(CancellationToken cancellationToken)
             Criteria = filter,
             Orders =
             {
-                new OrderExpression(dfeta_qualification.Fields.CreatedOn, OrderType.Ascending)
+                new OrderExpression(dfeta_qualification.PrimaryIdAttribute, OrderType.Ascending)
             },
             PageInfo = new PagingInfo()
             {
diff --git a/TeachingRecordSystem/src/TeachingRecordSystem.Core/Jobs/SyncAllPersonsFromCrmJob.cs b/TeachingRecordSystem/src/TeachingRecordSystem.Core/Jobs/SyncAllPersonsFromCrmJob.cs
index f243ed90e..8f0e3acf8 100644
--- a/TeachingRecordSystem/src/TeachingRecordSystem.Core/Jobs/SyncAllPersonsFromCrmJob.cs
+++ b/TeachingRecordSystem/src/TeachingRecordSystem.Core/Jobs/SyncAllPersonsFromCrmJob.cs
@@ -41,7 +41,7 @@ public async Task Execute(CancellationToken cancellationToken)
             Criteria = filter,
             Orders =
             {
-                new OrderExpression(Contact.Fields.CreatedOn, OrderType.Ascending)
+                new OrderExpression(Contact.PrimaryIdAttribute, OrderType.Ascending)
             },
             PageInfo = new PagingInfo()
             {