How To Fix KF526 - Number range object &1 is being locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: KF -

• Message number: 526

• Message text: Number range object &1 is being locked by user &2

What causes this issue?

You tried to process number range object &V1&, but it is already
locked by user &V2&.

System Response

You cannot process the number range object.

How to fix this error?

Wait until user &V2& has finished processing the number range object,
then try to process it again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KF526 - Number range object &1 is being locked by user &2 ?

  The SAP error message KF526 indicates that a number range object is currently locked by another user. This typically occurs when multiple users or processes are trying to access or modify the same number range object simultaneously, leading to a conflict.
  Cause:
  
  Concurrent Access: Another user or process is currently using the number range object, which prevents your session from accessing it.
  Long-running Transactions: If a transaction that uses the number range object is taking a long time to complete, it can hold the lock for an extended period.
  System Configuration: The number range object may be configured in a way that restricts access to a single user or session at a time.
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for the other user or process to complete their transaction. After a short period, try your action again.
  Identify the Locking User: If you have the necessary authorizations, you can check which user is holding the lock. You can use transaction code SM12 to view and manage locks. Look for the number range object in question and see which user is holding the lock.
  Contact the User: If you identify the user who is holding the lock, you can contact them to see if they can complete their transaction or release the lock.
  System Administrator Intervention: If the lock persists and you cannot resolve it, you may need to involve a system administrator. They can release the lock if it is determined that the locking session is no longer active or is stuck.
  Review Number Range Configuration: If this issue occurs frequently, consider reviewing the configuration of the number range object to ensure it is set up to allow concurrent access if appropriate.
  
  Related Information:
  
  Transaction Codes: 
  
  SM12: To view and manage locks.
  SE11: To check the definition of the number range object.
  SNUM: To manage number ranges.
  
  
  Documentation: Refer to SAP Help documentation for more details on number range management and locking mechanisms.
  Performance Monitoring: If locks are a frequent issue, consider monitoring system performance and user activity to identify potential bottlenecks.
  
  By following these steps, you should be able to resolve the KF526 error and understand the underlying issues related to number range locks in SAP.