How To Fix CZ091 - Program & is already in use


CZ091 - Overview

  • Message type: E = Error

  • Message class: CZ - Customizing messages

  • Message number: 091

  • Message text: Program & is already in use

  • Show details Hide details
  • What causes this issue?

    This program is only available for one user at a time.

    System Response

    The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

    How to fix this error?

    Please wait until the other user has finished working with the program.

    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message CZ091 - Program & is already in use ?
    The SAP error message CZ091, which states "Program & is already in use," typically occurs when a user attempts to execute a program or transaction that is already being processed by another user or session. This is a common issue in SAP environments where multiple users may try to access the same program simultaneously.
    
    Cause: Concurrent Execution: The program is already running in another session or by another user. Lock Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If a program is locked, other users cannot execute it until the lock is released. Long-Running Processes: If the program takes a long time to execute, it may remain locked for an extended period, causing other users to encounter this error.
    Solution: Wait and Retry: If the program is currently being executed by another user, you may need to wait until it completes. You can try running the program again after some time. Check Active Sessions: Use

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