How To Fix MC290 - Base field &-& still being used in matchcode ID &-&

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 290

• Message text: Base field &-& still being used in matchcode ID &-&

What causes this issue?

You deleted a field of the matchcode object which is still being used
in an ID of this matchcode object.
You changed a field reference (i.e. the name of the matchcode field is
not identical with the name of the table field) to a base field, but
an ID of this matchcode object is still based on the old field
reference. This case can occur if the matchcode field is first deleted
and then created again, but now refers to another table field.

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

In both cases, the matchcode object will be inconsistent and cannot be
activated.

System Response

Activation is terminated.

How to fix this error?

Delete the corresponding field in the matchcode ID. You can also try
to activate the matchcode object again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC290 - Base field &-& still being used in matchcode ID &-& ?

  The SAP error message MC290 indicates that a base field is still being used in a matchcode ID, which prevents certain operations from being completed. This error typically arises when you are trying to delete or modify a matchcode ID that is still associated with a base field in the system.
  Cause:
  
  Matchcode ID Usage: The base field you are trying to modify or delete is still linked to a matchcode ID. Matchcodes are used in SAP to provide search help for fields, and if a base field is still associated with a matchcode, it cannot be removed or altered.
  Data Integrity: SAP enforces data integrity rules to ensure that changes do not lead to inconsistencies in the database or application logic.
  
  Solution:
  To resolve the MC290 error, you can follow these steps:
  
  
  Identify the Matchcode ID: Determine which matchcode ID is associated with the base field. The error message usually provides the matchcode ID in question.
  
  
  Check Matchcode Assignments:
  
  Use transaction code SE11 (Data Dictionary) or SE80 (Object Navigator) to check the matchcode ID.
  Navigate to the matchcode object and see if the base field is still being used.
  
  
  
  Remove the Association:
  
  If you have the necessary authorizations, you can remove the association of the base field from the matchcode ID.
  This can typically be done in the matchcode object settings.
  
  
  
  Delete or Modify the Matchcode ID:
  
  Once the base field is no longer associated with the matchcode ID, you should be able to delete or modify the matchcode ID without encountering the error.
  
  
  
  Transport Changes: If you are working in a development environment, ensure that any changes are transported to the appropriate environments (e.g., QA, Production) as needed.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and SE93 (Transaction Codes) for managing matchcodes and their associations.
  Documentation: Refer to SAP documentation or help resources for detailed information on matchcodes and their configuration.
  Authorization: Ensure you have the necessary authorizations to make changes to matchcode IDs and base fields.
  
  If you continue to experience issues, consider reaching out to your SAP Basis or technical team for further assistance, as they may have additional tools or insights to help resolve the error.