SAP Message ADPTM128 - Priority rule cannot be determined for order code &1 prio key &2 (&3)

Diagnosis Priority rule cannot be determined for order code &V1& prio key &V2&. The order code is assigned to an undefined priority rule. System Response The CMC priority for all orders with that order code cannot becalculated. The CMC will display a '?' as the priority. Procedure Check your Customizing settings for order code &V1&.