How To Fix /ACCGO/UIS_API139 - Duplicate EXTID &1 in vendor address data

SAP Error Message - Details

• Message type: E = Error

• Message class: /ACCGO/UIS_API -

• Message number: 139

• Message text: Duplicate EXTID &1 in vendor address data

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ACCGO/UIS_API139 - Duplicate EXTID &1 in vendor address data ?

  The SAP error message /ACCGO/UIS_API139 Duplicate EXTID &1 in vendor address data typically indicates that there is a duplicate external ID (EXTID) for a vendor address in the system. This can occur when you are trying to create or update vendor address data, and the system finds that the external ID you are using already exists for another vendor address.
  Cause:
  
  Duplicate External ID: The primary cause of this error is that the external ID you are trying to use for a vendor address is already assigned to another vendor address in the system.
  Data Migration Issues: If you are migrating data from another system or performing mass uploads, it is possible that the external IDs were not unique.
  Manual Entry Errors: Users may inadvertently enter the same external ID for different vendor addresses.
  
  Solution:
  
  
  Check for Duplicates: 
  
  Use transaction codes like SE16 or SE11 to access the relevant database tables (e.g., LFA1 for vendor master data) and search for the external ID in question to see if it already exists.
  If you find a duplicate, you will need to either change the external ID you are trying to use or modify the existing entry if appropriate.
  
  
  
  Modify External ID: 
  
  If the external ID is indeed a duplicate, you can either choose a different unique external ID for the new vendor address or update the existing vendor address to remove the duplicate.
  
  
  
  Data Validation: 
  
  Implement data validation checks in your data entry or migration processes to ensure that external IDs are unique before attempting to create or update vendor addresses.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or consult with your SAP support team for any specific guidelines or best practices related to managing vendor addresses and external IDs.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MK01 (Create Vendor), MK02 (Change Vendor), and MK03 (Display Vendor) for managing vendor data.
  SAP Notes: Check SAP Notes for any known issues or patches related to vendor address management and external IDs.
  Custom Development: If your organization has custom developments or enhancements, ensure that they are not causing conflicts with the standard SAP behavior regarding external IDs.
  
  By following these steps, you should be able to resolve the error and ensure that your vendor address data is correctly maintained in SAP.