Flashing Lock Flag Is Locked Please Unlock It First Full __exclusive__ File

SAP uses enqueue locks (also called SM12 locks). When you begin a transaction that modifies stock, SAP sets a lock in the lock table (enqueue server). If this lock is not released—due to a program crash, network failure, or user force-closing the session—the lock becomes "orphaned."

In essence, the system is telling you: "There is a stuck lock on this material or document. You need to perform a complete unlock before retrying your transaction."

8 minutes.

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Understanding the "Flashing Lock Flag is Locked" Error: A Complete Guide