From b54472ffb70f4f920fb3ff89d9b82226626fc936 Mon Sep 17 00:00:00 2001
From: Stephan Behnke <stephan.behnke@temporal.io>
Date: Fri, 17 Jan 2025 10:18:38 -0800
Subject: [PATCH] add note

---
 service/history/api/startworkflow/api.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/service/history/api/startworkflow/api.go b/service/history/api/startworkflow/api.go
index 3c29983aa3a..848b2ad7e36 100644
--- a/service/history/api/startworkflow/api.go
+++ b/service/history/api/startworkflow/api.go
@@ -500,6 +500,7 @@ func (s *Starter) resolveDuplicateWorkflowID(
 		if s.followReusePolicyAfterConflictPolicyTerminate(s.namespace.Name().String()) {
 			// Exit and retry again from the top.
 			// By returning an Unavailable service error, the entire Start request will be retried.
+			// NOTE: This WorkflowIDReusePolicy cannot be RejectDuplicate as the frontend will reject that.
 			return nil, StartErr, serviceerror.NewUnavailable(fmt.Sprintf("Termination failed: %v", err))
 		}
 		// Fallthough to the logic for only creating the new workflow below.