diff --git a/src/request-management/request-management.service.ts b/src/request-management/request-management.service.ts
index ecad0b3..734f8c5 100644
--- a/src/request-management/request-management.service.ts
+++ b/src/request-management/request-management.service.ts
@@ -9373,16 +9373,26 @@ export class RequestManagementService {
       },
     };
 
+    if (typeof (req as any).markModified === "function") {
+      (req as any).markModified("expert");
+    }
+
     if (!Array.isArray(req.history)) req.history = [];
-    req.history.push({
-      type: "V3_ACCIDENT_FIELDS_SAVED",
-      actor: {
-        actorId: new Types.ObjectId(String(expert.sub)),
-        actorName: `${expert.firstName || ""} ${expert.lastName || ""}`.trim(),
-        actorType: "field_expert",
-      },
-      metadata: { accidentWay: fields.accidentWay },
-    } as any);
+    // Avoid duplicate history entries on idempotent retries.
+    const alreadyRecorded = (req.history as any[]).some(
+      (e: any) => e?.type === "V3_ACCIDENT_FIELDS_SAVED",
+    );
+    if (!alreadyRecorded) {
+      req.history.push({
+        type: "V3_ACCIDENT_FIELDS_SAVED",
+        actor: {
+          actorId: new Types.ObjectId(String(expert.sub)),
+          actorName: `${expert.firstName || ""} ${expert.lastName || ""}`.trim(),
+          actorType: "field_expert",
+        },
+        metadata: { accidentWay: fields.accidentWay },
+      } as any);
+    }
 
     await (req as any).save();