How To Fix TU029 - Combination &1 exists several times

TU029 - Overview

• Message type: E = Error

• Message class: TU - Billing/Scheduling/Budget Billing

• Message number: 029

• Message text: Combination &1 exists several times

What causes this issue?

The combination of billing class/division category &V1& that you have
entered occurs more than once. Each combination must only occur once.

System Response

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

How to fix this error?

Enter each combination of billing class/division category once only.

Error message extract from SAP system. Copyright SAP SE.

TU029 - Details

• The SAP error message TU029, which states "Combination &1 exists several times," typically occurs in the context of configuration or master data where a specific combination of characteristics or values is expected to be unique but is found to have multiple entries in the system.
  
  Cause:
  
  
  Duplicate Entries: The most common cause of this error is that there are duplicate entries in the database for the combination of characteristics or values you are trying to create or modify. This can happen in various contexts, such as material master data, configuration profiles, or variant configuration.
  
  
  Incorrect Configuration: If you are working with configurable materials, the configuration settings may not be set up correctly, leading to multiple entries for the same combination.
  
  
  Data Migration Issues: If data has been migrated from another system or if there have been bulk uploads, it is possible that duplicates were introduced during this process.
  
  
  
  Solution:
  
  
  Check for Duplicates: Use transaction codes like