How To Fix BUP_TAXC003 - Cannot make several changes to one key

SAP Error Message - Details

• Message type: E = Error

• Message class: BUP_TAXC - Message class for Business Partner Tax Classification

• Message number: 003

• Message text: Cannot make several changes to one key

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 BUP_TAXC003 - Cannot make several changes to one key ?

  The SAP error message BUP_TAXC003: "Cannot make several changes to one key" typically occurs when there is an attempt to make multiple changes to a business partner (BP) or a related object in a single transaction that is not allowed by the system. This error is often encountered in the context of business partner management, particularly when dealing with tax-related data or attributes.
  Cause:
  
  Multiple Changes: The error is triggered when the system detects that multiple changes are being attempted on the same key (e.g., a business partner number) in a single operation. This can happen if you are trying to update different attributes of a business partner simultaneously.
  Data Locking: There may be a data locking issue where the business partner is being accessed or modified by another transaction or user.
  Configuration Issues: There might be specific configurations or validations in place that restrict certain types of changes to be made together.
  
  Solution:
  
  Single Change Approach: Instead of trying to make multiple changes at once, break down the changes into separate transactions. Update one attribute at a time and save the changes before proceeding to the next.
  Check for Locks: Ensure that the business partner is not being edited by another user or transaction. You can check for locks using transaction code SM12.
  Review Custom Code: If there is any custom code or enhancements in your SAP system that might be affecting business partner changes, review that code to ensure it is not causing the issue.
  Consult Documentation: Check SAP notes or documentation related to business partner management for any specific guidelines or restrictions regarding changes to business partners.
  System Configuration: If the issue persists, consult with your SAP Basis or functional team to review the configuration settings related to business partner management and tax data.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as BP (Business Partner), SM12 (Display and Delete Locks), and SE80 (Object Navigator) for debugging.
  SAP Notes: Search for SAP Notes related to the error message for any patches or updates that may address the issue.
  User Authorizations: Ensure that the user has the necessary authorizations to make changes to business partner data.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance, providing them with detailed information about the steps taken and the context in which the error occurs.