How To Fix B1156 - Error locking change pointer for message type &.

B1156 - Overview

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 156

• Message text: Error locking change pointer for message type &.

What causes this issue?

The change pointer for message type &v1& could not be locked.

System Response

An error occured when you tried to lock the change pointer. The system
could not lock the object.

How to fix this error?

Consult your system administrator or check the lock entries.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1156 - Error locking change pointer for message type &. ?

  The SAP error message B1156, which states "Error locking change pointer for message type &," typically occurs in the context of change pointers and message types in SAP's IDoc processing. This error indicates that there was an issue with locking the change pointer for a specific message type, which can prevent the system from processing change pointers correctly.
  Causes:
  
  Concurrency Issues: The error may arise if multiple processes are trying to access or lock the same change pointer simultaneously, leading to a deadlock or timeout situation.
  Database Locking: If the database is experiencing locking issues or if there are long-running transactions, it may prevent the change pointer from being locked.
  
  Configuration Issues: Incorrect configuration of the message type or change pointer settings can lead to this error.
  System Performance: High system load or performance issues can also contribute to locking problems.
  
  Solutions:
  
  Check for Locks: Use transaction codes like SM12 to check for existing locks on the