How To Fix MDG_BS_BP_MLT_AS027 - Supplier &1 is already assigned to partner &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_BS_BP_MLT_AS - Messages for multiple assignment function

• Message number: 027

• Message text: Supplier &1 is already assigned to partner &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_BS_BP_MLT_AS027 - Supplier &1 is already assigned to partner &2 ?

  The SAP error message MDG_BS_BP_MLT_AS027 indicates that a supplier (business partner) is already assigned to another partner in the system. This typically occurs in the context of Master Data Governance (MDG) for Business Partners when there is an attempt to assign a supplier to a partner that is already linked to a different business partner.
  Cause:
  The error is caused by the following scenarios:
  
  Duplicate Assignment: The supplier you are trying to assign is already linked to another business partner in the system.
  Data Integrity Rules: SAP MDG enforces data integrity rules to prevent duplicate assignments of business partners to ensure that each supplier is uniquely associated with a single partner.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Assignments:
  
  Use transaction codes like BP (Business Partner) to check the existing assignments of the supplier and the partner in question.
  Verify if the supplier is indeed assigned to another partner.
  
  
  
  Remove Existing Assignment:
  
  If the supplier is incorrectly assigned to another partner, you may need to remove that assignment before you can assign it to the desired partner.
  This can be done by navigating to the relevant business partner and removing the supplier role.
  
  
  
  Correct Data Entry:
  
  Ensure that you are entering the correct supplier and partner IDs. Sometimes, a simple data entry error can lead to this issue.
  
  
  
  Consult with Data Governance Team:
  
  If you are unsure about the implications of changing assignments, consult with your data governance or master data management team to ensure compliance with business rules.
  
  
  
  Review Configuration:
  
  If this error occurs frequently, it may be worth reviewing the configuration settings in MDG to ensure that the rules for business partner assignments are set up correctly.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like BP, MDG, and SE11 (Data Dictionary) to investigate the business partner data model.
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or updates related to this error.
  MDG Configuration: Understanding the configuration settings in MDG can help in troubleshooting similar issues in the future.
  
  By following these steps, you should be able to resolve the error and successfully manage your business partner assignments in SAP MDG.