: Likely refers to a specific "Master Key" or "Service Key" required for system operations or data decryption within the MVS architecture.
Configure your application to "wait and retry" rather than crashing immediately when it sees an exclusive lock. To help you get this resolved, could you tell me: mvsckey not found exclusive
EXEC CICS ENQ RESOURCE(your-key) LENGTH(8) NOSUSPEND END-EXEC : Likely refers to a specific "Master Key"