How To Fix MDC_BP_MODEL051 - Additional Assignment with external numbering is ignored for BP &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MDC_BP_MODEL - Business Partner Data Model

• Message number: 051

• Message text: Additional Assignment with external numbering is ignored for BP &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDC_BP_MODEL051 - Additional Assignment with external numbering is ignored for BP &1 ?

  The SAP error message MDC_BP_MODEL051, which states "Additional Assignment with external numbering is ignored for BP &1," typically occurs in the context of Business Partner (BP) management in SAP S/4HANA or SAP MDG (Master Data Governance). This error indicates that there is an issue with the assignment of an external number range to a Business Partner.
  Cause:
  
  External Numbering Configuration: The Business Partner is configured to use external numbering, but the system is trying to assign an additional relationship or role that is not compatible with this configuration.
  Incorrect Role Assignment: The role or relationship being assigned may not support external numbering, or the assignment is not valid for the specific Business Partner type.
  Data Inconsistency: There may be inconsistencies in the data being processed, such as missing or incorrect information related to the Business Partner.
  
  Solution:
  
  
  Check Configuration: Verify the configuration settings for Business Partner roles and number ranges. Ensure that the Business Partner is set up correctly for external numbering.
  
  Go to the transaction code BP and check the settings for the Business Partner in question.
  Ensure that the roles assigned to the Business Partner are compatible with external numbering.
  
  
  
  Review Role Assignments: Check the roles assigned to the Business Partner and ensure that they are appropriate for the external numbering setup. If necessary, remove or adjust the roles that are causing the issue.
  
  
  Data Validation: Validate the data being used for the Business Partner creation or update. Ensure that all required fields are filled out correctly and that there are no inconsistencies.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on Business Partner configuration and external numbering.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional guidance on resolving it.
  
  
  Testing: After making the necessary adjustments, test the process again to see if the error persists.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as BP (Business Partner), BP_MONITOR (Business Partner Monitor), and MDG_BS_BP (MDG Business Partner).
  SAP Help Portal: Utilize the SAP Help Portal for detailed documentation on Business Partner management and configuration.
  Community Forums: Engage with SAP community forums or support channels for additional insights and shared experiences from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant for further assistance.