How To Fix MC299 - All matchcode pools on the DB also exist in ABAP Dictionary

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 299

• Message text: All matchcode pools on the DB also exist in ABAP Dictionary

What causes this issue?

All the matchcode pools created on the database are consistent, that
is, the corresponding definitions in the ABAP/4 Dictionary exist.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Pure information. No action necessary.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC299 - All matchcode pools on the DB also exist in ABAP Dictionary ?

  The SAP error message MC299 indicates that there is an issue with matchcode pools in the database and the ABAP Dictionary. This error typically arises when the system detects that all matchcode pools defined in the database also exist in the ABAP Dictionary, which can lead to inconsistencies or conflicts.
  
  Cause:
  
  Matchcode Pool Definition: The error usually occurs when there is a mismatch or redundancy in the definitions of matchcode pools between the database and the ABAP Dictionary.
  Database Consistency: The database may have matchcode pools that are not properly aligned with the definitions in the ABAP Dictionary, leading to this error.
  Transport Issues: If there have been recent transports or changes to the matchcode pool definitions, it may result in inconsistencies.
  
  
  Solution:
  To resolve the MC299 error, you can follow these steps:
  
  
  Check Matchcode Pool Definitions:
  
  Use transaction code SE11 (Data Dictionary) to check the matchcode pool definitions in the ABAP Dictionary.
  Compare these definitions with the matchcode