How To Fix CA_TTE197 - External Mapping of Business Partner ID '&1' is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: CA_TTE - TTE Messages

• Message number: 197

• Message text: External Mapping of Business Partner ID '&1' is not unique

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CA_TTE197 - External Mapping of Business Partner ID '&1' is not unique ?

  The SAP error message CA_TTE197 indicates that there is an issue with the external mapping of a Business Partner (BP) ID in the system. Specifically, it means that the external ID you are trying to use is not unique, which can lead to confusion or conflicts in data processing.
  Cause:
  
  Duplicate External IDs: The most common cause of this error is that there are multiple Business Partners in the system that are mapped to the same external ID. This can happen if the same external ID is assigned to different BPs, either due to data entry errors or incorrect data migration processes.
  Incorrect Configuration: There may be issues with the configuration of the external ID mapping in the system, leading to conflicts.
  Data Migration Issues: If data was migrated from another system, it’s possible that the external IDs were not properly validated for uniqueness.
  
  Solution:
  
  
  Check for Duplicates: 
  
  Use transaction codes like BP (Business Partner) or SE16N (Data Browser) to check the Business Partner master data for duplicates. Look for the external ID in the relevant fields.
  You can run a query to find all Business Partners that have the same external ID.
  
  
  
  Correct the Data:
  
  If duplicates are found, you will need to either delete or modify the Business Partner records to ensure that each external ID is unique.
  If the external ID is supposed to be unique but is not, you may need to assign a new unique external ID to one of the conflicting Business Partners.
  
  
  
  Review Configuration:
  
  Check the configuration settings for external ID mapping in the system. Ensure that the settings enforce uniqueness where required.
  
  
  
  Data Migration Review:
  
  If the issue arose after a data migration, review the migration process to ensure that it included checks for unique external IDs.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or support notes related to Business Partner management and external ID mapping for additional guidance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as BP for Business Partner maintenance, SE16N for data browsing, and SICF for service activation if needed.
  SAP Notes: Check SAP Notes for any known issues or patches related to Business Partner external ID mapping.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the CA_TTE197 error and ensure that your Business Partner external ID mappings are unique.