How To Fix AM845 - Internal lock error (address can only be displayed)

SAP Error Message - Details

• Message type: E = Error

• Message class: AM - Business Address Services

• Message number: 845

• Message text: Internal lock error (address can only be displayed)

What causes this issue?

An internal error occurred in the lock administration while trying to
lock the created address from a competing access by another user.

System Response

The address could not be locked. The address is only displayed because
access by another user could not be prevented.

How to fix this error?

If you wish to process the address furhter, re-start the
transaction and select the addresses to be maintained again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AM845 - Internal lock error (address can only be displayed) ?

  The SAP error message AM845, which states "Internal lock error (address can only be displayed)," typically occurs in the Asset Accounting (FI-AA) module when there is an issue with the internal locking mechanism of the system. This error can arise due to various reasons, including:
  Causes:
  
  Concurrency Issues: Multiple users or processes trying to access or modify the same asset simultaneously can lead to locking conflicts.
  Database Locking: The database may have a lock on the asset record, preventing other transactions from accessing it.
  System Errors: Internal errors in the SAP system or inconsistencies in the database can also trigger this error.
  Transaction Rollback: If a transaction is rolled back unexpectedly, it may leave the asset in a locked state.
  
  Solutions:
  
  Check Lock Entries: Use transaction code SM12 to check for any lock entries related to the asset. If you find any locks that are no longer needed, you can delete them (ensure you have the necessary authorizations).
  Wait and Retry: If the error is due to concurrent access, waiting for a few moments and then retrying the transaction may resolve the issue.
  Review User Sessions: Check if there are any long-running sessions or transactions that might be holding locks on the asset. You can use transaction code SM66 to monitor active processes.
  System Restart: In some cases, a system restart may be necessary to clear any lingering locks or errors.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve known issues.
  Contact SAP Support: If the issue persists and you cannot identify the cause, it may be necessary to contact SAP Support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (for lock entries), SM21 (for system logs), and SM66 (for monitoring active processes).
  User Authorizations: Ensure that users have the appropriate authorizations to access and modify asset records.
  System Performance: Monitor system performance and database health, as performance issues can exacerbate locking problems.
  Documentation: Review SAP documentation related to Asset Accounting and locking mechanisms for a deeper understanding of how these systems interact.
  
  By following these steps, you should be able to diagnose and resolve the AM845 error in SAP.