Dont update Effective date if no gp code

application/CohortManager/src/Functions/ParticipantManagementServices/ManageServiceNowParticipant/ManageServiceNowParticipantFunction.cs

@@ -69,7 +69,10 @@ public async Task Run([ServiceBusTrigger(topicName: "%ServiceNowParticipantManag
             {
                 _logger.LogError("Failed to subscribe participant for updates. Case Number: {CaseNumber}", serviceNowParticipant.ServiceNowCaseNumber);
             }
-            await _exceptionHandler.CreateTransformExecutedExceptions(new CohortDistributionParticipant{NhsNumber = serviceNowParticipant.NhsNumber.ToString()},"98.UpdateServiceNowData.ReferralWithPrimaryCareProvider",98);
+            if(serviceNowParticipant.RequiredGpCode != null)
+            {
+                await _exceptionHandler.CreateTransformExecutedExceptions(new CohortDistributionParticipant{NhsNumber = serviceNowParticipant.NhsNumber.ToString()},"98.UpdateServiceNowData.ReferralWithPrimaryCareProvider",98);
+            }
             var participantForDistribution = new BasicParticipantCsvRecord(serviceNowParticipant, participantManagement);
 
             var sendToQueueSuccess = await _queueClient.AddAsync(participantForDistribution, _config.CohortDistributionTopic);

application/CohortManager/src/Functions/Shared/Model/BasicParticipantCsvRecord.cs

@@ -30,7 +30,7 @@ public BasicParticipantCsvRecord(ServiceNowParticipant serviceNowParticipant, Pa
         {
             ReferralFlag = "1",
             PrimaryCareProvider = serviceNowParticipant.RequiredGpCode,
-            PrimaryCareProviderEffectiveFromDate = DateTime.UtcNow.ToString("yyyy-MM-dd"),
+            PrimaryCareProviderEffectiveFromDate = string.IsNullOrEmpty(serviceNowParticipant.RequiredGpCode) ? null : DateTime.UtcNow.ToString("yyyy-MM-dd"),
             ScreeningAcronym = "BSS" // TODO: Remove hardcoding when adding support for additional screening programs
         };
     }