[OM] Allocation Error During Transact Move Order

"Error: The material sourcing process failed to create picking suggestions for line 2 of move order number 59641464"

"APP-INV-05297: Invalid transaction and serial control combination"

Encountered the above error message after clicked on "Allocate" button in Transact Move Orders form. Even after I backordered the line, I could not proceed to Pick Release, failed Pick Release.

Root Cause: Item lot reserved for the order line is no more valid.

Action: Unreserve the invalid item lot, pick release, transact move order & ship confirm successfully.