How To Fix GP159 - Combination with & & already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: GP - FI-SL and CO planning

• Message number: 159

• Message text: Combination with & & already exists

What causes this issue?

You have entered value &V2& for dimension &V1&. However, this value
already exists in the list.

System Response

The system will not accept value &V2&.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GP159 - Combination with & & already exists ?

  The SAP error message GP159 "Combination with & & already exists" typically occurs in the context of SAP's Global Payroll module. This error indicates that there is an attempt to create a combination of data (such as a payroll area, employee group, or other related data) that already exists in the system. This can happen during various processes, such as payroll processing, data entry, or configuration.
  Cause:
  
  Duplicate Entries: The most common cause is that the combination of the specified fields (e.g., payroll area, employee group) already exists in the database.
  Configuration Issues: There may be issues in the configuration settings where the same combination is inadvertently defined multiple times.
  Data Migration: If data has been migrated from another system, it may have resulted in duplicate entries.
  Incorrect Data Entry: Manual data entry errors can lead to attempts to create duplicate combinations.
  
  Solution:
  
  Check Existing Combinations: Review the existing combinations in the relevant tables (e.g., T001, T512W) to identify if the combination already exists.
  Modify or Delete Duplicates: If duplicates are found, you may need to modify or delete the existing entry to allow for the new combination.
  Review Configuration: Check the configuration settings in the SAP system to ensure that the combinations are set up correctly and that there are no overlaps.
  Data Validation: Implement data validation checks to prevent duplicate entries during data entry or migration processes.
  Consult Documentation: Refer to SAP documentation or notes related to the specific error message for additional guidance and troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SE11 (Data Dictionary), SE16 (Data Browser), or PA30 (Maintain HR Master Data) to investigate the issue further.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP team for assistance.
  
  By following these steps, you should be able to identify the cause of the GP159 error and implement a solution to resolve it.