How To Fix OM535 - Nonexclusive lock is irreversible

SAP Error Message - Details

• Message type: E = Error

• Message class: OM - Customizing Materialwirtschaft

• Message number: 535

• Message text: Nonexclusive lock is irreversible

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OM535 - Nonexclusive lock is irreversible ?

  The SAP error message OM535 "Nonexclusive lock is irreversible" typically occurs when there is an attempt to modify or delete a resource that is currently locked by another user or process in a way that does not allow for shared access. This can happen in various scenarios, such as when working with materials, production orders, or other transactional data.
  
  Cause:
  
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. When a user or process locks a record in a non-exclusive manner, it means that other users cannot modify or delete that record until the lock is released.
  Long-Running Transactions: If a transaction takes too long to complete, it may hold onto locks longer than necessary, causing other users to encounter this error.
  Deadlocks: In some cases, deadlocks can occur where two processes are waiting for each other to release locks, leading to this error.
  System Configuration: Certain configurations or customizations in the SAP