How To Fix /CCIS/TAX663 - Entry '&' already exists, overwrite is prohibited

SAP Error Message - Details

• Message type: E = Error

• Message class: /CCIS/TAX -

• Message number: 663

• Message text: Entry '&' already exists, overwrite is prohibited

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 /CCIS/TAX663 - Entry '&' already exists, overwrite is prohibited ?

  The SAP error message /CCIS/TAX663 Entry '&' already exists, overwrite is prohibited typically occurs in the context of the SAP Convergent Charging (SAP CC) module, particularly when dealing with tax configuration or similar entries. This error indicates that there is an attempt to create or modify an entry that already exists in the system, and the system is set to prevent overwriting existing entries.
  Cause:
  
  Duplicate Entry: The most common cause of this error is that you are trying to create a new entry (like a tax code, tax rate, or similar configuration) that has the same identifier as an existing entry in the system.
  Configuration Settings: The system may be configured to prevent overwriting existing entries to maintain data integrity and avoid accidental loss of important configurations.
  Data Migration or Import: If you are importing data or migrating from another system, there may be conflicts with existing entries.
  
  Solution:
  
  Check Existing Entries: Before creating a new entry, check the existing entries in the relevant configuration table or transaction. You can do this by using transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to view the entries in the relevant table.
  Modify Instead of Create: If you need to change an existing entry, consider modifying it instead of creating a new one. Use the appropriate transaction to edit the existing entry.
  Use a Different Identifier: If you need to create a new entry, ensure that you use a unique identifier that does not conflict with existing entries.
  Consult Documentation: Review the SAP documentation or help files related to the specific module you are working with to understand the rules regarding entry creation and modification.
  Check Authorization: Ensure that you have the necessary authorizations to create or modify entries in the system. Lack of proper authorization can sometimes lead to unexpected errors.
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message. SAP frequently releases updates that may address known issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing tax configurations, such as:
  
  OBYZ: Maintain Tax Codes
  OB40: Define Tax Calculation Procedures
  
  
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.