diff --git a/src/SIL.XForge.Scripture/Services/ParatextService.cs b/src/SIL.XForge.Scripture/Services/ParatextService.cs
index cc77ced6c4..d9678a753a 100644
--- a/src/SIL.XForge.Scripture/Services/ParatextService.cs
+++ b/src/SIL.XForge.Scripture/Services/ParatextService.cs
@@ -2938,7 +2938,7 @@ Dictionary<string, ParatextUserProfile> ptProjectUsers
                         continue;
                     if (!string.IsNullOrEmpty(note.SyncUserRef))
                         throw new DataNotFoundException(
-                            "Could not find the matching comment for a note containing a sync user."
+                            $"Could not find the matching comment for note {note.DataId} in thread {note.ThreadId} containing sync user {note.SyncUserRef}."
                         );
 
                     // new comment added