How To Fix MC279 - Error when reading matchcode object (inconsistency)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 279

• Message text: Error when reading matchcode object (inconsistency)

What causes this issue?

This is probably an internal inconsistency.

System Response

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

How to fix this error?

Please consult SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC279 - Error when reading matchcode object (inconsistency) ?

  The SAP error message MC279 indicates an inconsistency when reading a matchcode object. This error typically arises in the context of SAP's Material Management (MM) or other modules that utilize matchcodes for searching and retrieving data.
  Cause:
  The error can be caused by several factors, including:
  
  
  Data Inconsistency: There may be inconsistencies in the underlying data that the matchcode object is trying to access. This could be due to incomplete data entries, missing records, or corruption in the database.
  
  
  Matchcode Object Configuration: The matchcode object itself may not be configured correctly. This could involve issues with the definition of the matchcode, such as incorrect fields being included or misconfigured search criteria.
  
  
  Database Issues: Problems with the database, such as locks, corruption, or issues with the database tables that store matchcode data, can also lead to this error.
  
  
  Transport Issues: If the matchcode object was recently transported from one system to another, there may be inconsistencies due to missing or incomplete transport requests.
  
  
  Solution:
  To resolve the MC279 error, you can take the following steps:
  
  
  Check Data Consistency:
  
  Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the underlying tables for inconsistencies.
  Run consistency checks on the relevant tables to identify and correct any issues.
  
  
  
  Review Matchcode Configuration:
  
  Go to transaction code SE11 and check the matchcode object definition.
  Ensure that all fields and search criteria are correctly defined and that there are no missing or incorrect entries.
  
  
  
  Rebuild Matchcode:
  
  If the matchcode object is corrupted, you may need to rebuild it. This can often be done using transaction code MC21 (Matchcode Object Maintenance) to regenerate the matchcode.
  
  
  
  Database Checks:
  
  Check for any database locks or issues. You may need to consult with your database administrator to ensure that the database is functioning correctly.
  
  
  
  Transport Issues:
  
  If the issue arose after a transport, verify that all necessary objects were included in the transport request and that they were imported correctly.
  
  
  
  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 can resolve the issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE16, MC21, and others that may help in diagnosing and fixing the issue.
  SAP Documentation: Review SAP documentation related to matchcode objects and data consistency checks for more detailed guidance.
  Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it involves complex data or configuration issues.
  
  By following these steps, you should be able to identify and resolve the cause of the MC279 error in your SAP system.