diff --git a/src/PowderCoating.Web/Controllers/QuotesController.cs b/src/PowderCoating.Web/Controllers/QuotesController.cs
index 17e5d17..f4d3f12 100644
--- a/src/PowderCoating.Web/Controllers/QuotesController.cs
+++ b/src/PowderCoating.Web/Controllers/QuotesController.cs
@@ -3146,6 +3146,13 @@ public class QuotesController : Controller
         quote.ConvertedDate = DateTime.UtcNow;
         await _unitOfWork.SaveChangesAsync();
 
+        // The interceptor just bumped quote.UpdatedAt as part of the ConvertedToJobId write.
+        // Advance the job's snapshot past that update — otherwise the comparison
+        // job.Quote.UpdatedAt > job.QuoteSnapshotUpdatedAt is immediately true and the
+        // "source quote was modified" banner fires on every newly-converted job.
+        job.QuoteSnapshotUpdatedAt = quote.UpdatedAt ?? quote.CreatedAt;
+        await _unitOfWork.SaveChangesAsync();
+
         // Copy all quote photos to job (leave originals on the quote)
         // AI analysis photos are copied with IsAiAnalysisPhoto=true so they don't count against subscription limits
         try