How To Fix MC166 - Matchcode ID &-& locked - try again later

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 166

• Message text: Matchcode ID &-& locked - try again later

What causes this issue?

The matchcode object which you selected for maintenance is already
being maintained by you or by another user.

System Response

Maintenance is cancelled.

How to fix this error?

After termination of the matchcode object maintenance you can request
further maintenance. Make sure that cancellation of the matchcode
record construction must first be ended with a restart before further
maintenance can be requested. Of course the cause of the cancellation
must be corrected before the restart.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC166 - Matchcode ID &-& locked - try again later ?

  The SAP error message MC166 "Matchcode ID &-& locked - try again later" typically occurs when a matchcode ID (which is used for searching and retrieving data in SAP) is locked for some reason. This can happen due to various reasons, such as:
  Causes:
  
  Concurrent Access: Another user or process is currently using or modifying the matchcode ID, leading to a temporary lock.
  System Lock: The matchcode ID might be locked due to a system process or a background job that is currently running.
  Database Lock: There may be a database-level lock on the matchcode ID, preventing access.
  
  Configuration Issues: There could be issues with the configuration of the matchcode ID itself.
  
  Solutions:
  
  Wait and Retry: Since the error indicates that the matchcode ID is locked, the simplest solution is to wait for a few moments and then try again. Locks are usually temporary.
  Check for Active Sessions: Use transaction codes like SM12 (to check for locks) or