How To Fix MC168 - Matchcode object & could not be unlocked after maintenance

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 168

• Message text: Matchcode object & could not be unlocked after maintenance

What causes this issue?

An error occurred when unlocking a matchcode object.

System Response

Maintenance is terminated.

How to fix this error?

Remove the matchcode object lock with the transaction SM12.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC168 - Matchcode object & could not be unlocked after maintenance ?

  The SAP error message MC168 indicates that a matchcode object could not be unlocked after maintenance. This typically occurs when there are issues related to the matchcode object in the SAP system, which is used for searching and retrieving data efficiently.
  Cause:
  
  Locking Issues: The matchcode object may be locked due to ongoing processes or transactions that are using it.
  Incomplete Maintenance: If the maintenance of the matchcode object was not completed successfully, it may remain in a locked state.
  Authorization Issues: The user may not have the necessary authorizations to unlock or modify the matchcode object.
  Database Issues: There could be underlying database issues that prevent the unlocking of the matchcode object.
  
  Solution:
  
  Check Locks: Use transaction code SM12 to check for any locks on the matchcode object. If you find any locks that are not needed, you can delete them (ensure you have the necessary authorizations).
  Re-run Maintenance: If the maintenance was incomplete, you may need to re-run the maintenance transaction for the matchcode object using transaction code SE11 or SE16.
  Check Authorizations: Ensure that the user has the necessary authorizations to unlock and maintain matchcode objects. You may need to consult with your SAP security team.
  Database Consistency Check: Run a database consistency check to ensure that there are no underlying issues affecting the matchcode object. This can be done using transaction codes like DB02 or DBACOCKPIT.
  Restart the System: In some cases, a system restart may help clear any lingering locks or issues.
  
  Related Information:
  
  Matchcode Objects: These are used in SAP to provide a search functionality for various data types. They are defined in the Data Dictionary (transaction SE11).
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SM12 (Display and Delete Locks), and SE16 (Data Browser).
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address specific issues related to matchcode objects and their maintenance.
  
  If the problem persists after trying the above solutions, it may be necessary to consult with SAP support or your internal SAP Basis team for further assistance.