diff --git a/pkg/handlers/primeapi/payment_request.go b/pkg/handlers/primeapi/payment_request.go
index 7a0150e28c9..3d05d751736 100644
--- a/pkg/handlers/primeapi/payment_request.go
+++ b/pkg/handlers/primeapi/payment_request.go
@@ -127,7 +127,8 @@ func (h CreatePaymentRequestHandler) Handle(params paymentrequestop.CreatePaymen
 						zap.Any("payload", payload))
 					return paymentrequestop.NewCreatePaymentRequestBadRequest().WithPayload(payload), err
 				default:
-					if e.Error() == "cannot have payment date earlier than or equal to SIT Entry date" {
+					if e.Error() == "cannot have payment start date for additional days SIT earlier than or equal to SIT entry date" {
+
 						payload := payloads.ClientError(handlers.ConflictErrMessage, err.Error(), h.GetTraceIDFromRequest(params.HTTPRequest))
 
 						appCtx.Logger().Error("Payment Request",
diff --git a/pkg/services/payment_request/payment_request_creator.go b/pkg/services/payment_request/payment_request_creator.go
index 0301e8dd3d6..0b301193287 100644
--- a/pkg/services/payment_request/payment_request_creator.go
+++ b/pkg/services/payment_request/payment_request_creator.go
@@ -151,7 +151,7 @@ func (p *paymentRequestCreator) CreatePaymentRequest(appCtx appcontext.AppContex
 					}
 
 					if paymentServiceItem.MTOServiceItem.SITEntryDate != nil && !paymentDate.After(*paymentServiceItem.MTOServiceItem.SITEntryDate) {
-						return apperror.NewConflictError(paymentRequestArg.ID, "cannot have payment date earlier than or equal to SIT Entry date")
+						return apperror.NewConflictError(paymentRequestArg.ID, "cannot have payment start date for additional days SIT earlier than or equal to SIT entry date")
 					}
 				}