How To Fix MDC_BP_MODEL058 - Vendor number &1 is already assigned to business partner &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MDC_BP_MODEL - Business Partner Data Model

• Message number: 058

• Message text: Vendor number &1 is already assigned to business partner &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDC_BP_MODEL058 - Vendor number &1 is already assigned to business partner &2 ?

  The SAP error message MDC_BP_MODEL058 indicates that a vendor number is already assigned to a different business partner. This typically occurs when you are trying to create or modify a business partner and assign a vendor number that is already in use by another business partner in the system.
  Cause:
  
  Duplicate Assignment: The vendor number you are trying to assign is already linked to another business partner.
  Data Migration Issues: If you are migrating data from another system or performing mass uploads, there may be conflicts with existing data.
  Incorrect Configuration: There may be issues with the configuration of business partner roles or number ranges.
  
  Solution:
  
  
  Check Existing Assignments:
  
  Use transaction code BP to check the existing business partners and their assigned vendor numbers. Look for the vendor number in question to see which business partner it is currently assigned to.
  
  
  
  Change Vendor Number:
  
  If the vendor number is indeed assigned to another business partner, you will need to either:
  
  Choose a different vendor number that is not in use.
  If appropriate, you can reassign the vendor number from the existing business partner to the new one, but ensure that this does not violate any business rules or data integrity.
  
  
  
  
  
  Data Cleanup:
  
  If this error arises from data migration, ensure that the data being imported does not contain duplicates. Clean up the data before attempting to import it again.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP Basis or functional team to ensure that the business partner roles and number ranges are correctly configured.
  
  
  
  Check for Custom Logic:
  
  If there are any custom enhancements or logic in your SAP system that might affect business partner creation, review those to ensure they are not causing the issue.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  BP - Business Partner Maintenance
  SE16N - Data Browser (to check tables related to business partners)
  
  
  
  Tables:
  
  BUT000 - General Data for Business Partner
  LFA1 - Vendor Master (General Section)
  
  
  
  SAP Notes: 
  
  Check SAP Notes for any known issues or patches related to business partner and vendor number assignments.
  
  
  
  Support: 
  
  If the issue persists, consider reaching out to SAP support for further assistance, especially if you suspect a bug or system issue.
  
  
  
  By following these steps, you should be able to resolve the MDC_BP_MODEL058 error and successfully manage your business partner and vendor assignments in SAP.