How To Fix USMD1B028 - Entity type &1: Technical key &2 is referenced in mapping table

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1B - Meldungen: MDF Anschluss

• Message number: 028

• Message text: Entity type &1: Technical key &2 is referenced in mapping table

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message USMD1B028 - Entity type &1: Technical key &2 is referenced in mapping table ?

  The SAP error message USMD1B028 indicates that there is a problem with a technical key in a mapping table related to an entity type in the SAP Master Data Governance (MDG) environment. This error typically arises when you are trying to delete or modify an entity that is still being referenced in a mapping table, which prevents the operation from being completed.
  Cause:
  The error occurs because:
  
  The entity type (denoted by &1) has a technical key (denoted by &2) that is still in use in a mapping table.
  The system enforces referential integrity, meaning that you cannot delete or modify an entity that is still referenced elsewhere in the system.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Mapping Table: Determine which mapping table is referencing the technical key. You may need to check the configuration or the data model to find out where the reference is being made.
  
  
  Check References: Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to look up the mapping table and see the records that reference the technical key.
  
  
  Remove References: If it is appropriate to do so, remove or update the references in the mapping table that are causing the error. Ensure that you have the necessary authorizations and that you are following your organization's data governance policies.
  
  
  Delete or Modify the Entity: Once the references have been cleared, you should be able to delete or modify the entity without encountering the error.
  
  
  Consult Documentation: If you are unsure about the implications of removing references, consult the SAP documentation or your organization's SAP MDG guidelines.
  
  
  Testing: After making changes, perform testing to ensure that the integrity of the data is maintained and that the changes do not adversely affect other processes.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions for this error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Data Governance Policies: Always adhere to your organization's data governance policies when making changes to master data to avoid data integrity issues.
  
  By following these steps, you should be able to resolve the USMD1B028 error and proceed with your intended operations in SAP MDG.