diff --git a/google-apps-script/AdminSync.gs b/google-apps-script/AdminSync.gs
index a940343..0c31be0 100644
--- a/google-apps-script/AdminSync.gs
+++ b/google-apps-script/AdminSync.gs
@@ -70,6 +70,10 @@ function adminUpdate_(sheet, payload) {
   }
 
   var normalized = adminValidateChanges_(changes);
+  var currentDecision = clean_(current[COL.FINAL_DECISION - 1]) || 'Pending';
+  if (normalized.finalDecision !== currentDecision) {
+    normalized.notificationStatus = 'Not Sent';
+  }
   sheet.getRange(rowNumber, COL.INTAKE_STATUS, 1, 9).setValues([[
     normalized.intakeStatus,
     sheetText_(normalized.reviewer1),
diff --git a/scripts/test_sheets_sync.mjs b/scripts/test_sheets_sync.mjs
index c3aa6b9..bd46c26 100644
--- a/scripts/test_sheets_sync.mjs
+++ b/scripts/test_sheets_sync.mjs
@@ -666,9 +666,32 @@ assert.equal(acceptedRow[21], "Sent");
 assert.equal(brevoRequests.length, 2, "acceptance notification must use the same Brevo path");
 assert.equal(brevoRequests[1].body.subject, "[PBAST10] Abstract accepted — brevo-submission-1");
 
-acceptedRow[19] = "Reject";
-acceptedRow[20] = "None";
-acceptedRow[21] = "Not sent";
+for (const priorNotificationStatus of ["Sent", "Confirmed"]) {
+  acceptedRow[19] = "Accept";
+  acceptedRow[20] = "Oral";
+  acceptedRow[21] = priorNotificationStatus;
+  const rejectionUpdate = JSON.parse(context.adminUpdate_(tracker, {
+    submissionId: "brevo-submission-1",
+    expectedFingerprint: context.adminFingerprint_(acceptedRow),
+    changes: {
+      intakeStatus: "Checked",
+      reviewer1: "",
+      reviewer1Decision: "",
+      reviewer2: "",
+      reviewer2Decision: "",
+      finalDecision: "Reject",
+      finalPresentationType: "None",
+      notificationStatus: priorNotificationStatus,
+      notes: "",
+    },
+  }).body);
+  assert.equal(rejectionUpdate.ok, true);
+  assert.equal(
+    rejectionUpdate.row.notificationStatus,
+    "Not Sent",
+    `changing the final decision must reset ${priorNotificationStatus}`,
+  );
+}
 const rejection = callAppsScript({
   action: "admin-rejection-email",
   submissionId: "brevo-submission-1",