Update

backend/src/index.ts

@@ -1868,12 +1868,38 @@ function syncComparableValue(value: unknown) {
   return value ?? null;
 }
 
-function syncValueChanged(left: unknown, right: unknown) {
-  return JSON.stringify(syncComparableValue(left)) !== JSON.stringify(syncComparableValue(right));
+function syncIdComparableValue(value: unknown) {
+  const comparable = syncComparableValue(value);
+
+  if (typeof comparable === "number" && Number.isInteger(comparable)) {
+    return String(comparable);
+  }
+
+  if (typeof comparable === "bigint") {
+    return comparable.toString();
+  }
+
+  if (typeof comparable === "string" && /^\d+$/.test(comparable.trim())) {
+    return comparable.trim().replace(/^0+(?=\d)/, "");
+  }
+
+  return comparable;
+}
+
+function syncComparableValueForField(field: string, value: unknown) {
+  if (field === "Organisation") {
+    return syncIdComparableValue(value);
+  }
+
+  return syncComparableValue(value);
+}
+
+function syncValueChanged(field: string, left: unknown, right: unknown) {
+  return JSON.stringify(syncComparableValueForField(field, left)) !== JSON.stringify(syncComparableValueForField(field, right));
 }
 
 function addSyncChange(changes: ZammadSyncChange[], field: string, from: unknown, to: unknown) {
-  if (syncValueChanged(from, to)) {
+  if (syncValueChanged(field, from, to)) {
     changes.push({ field, from: syncComparableValue(from), to: syncComparableValue(to) });
   }
 }