How To Fix CATSXT144 - Additions not possible - key (COUNTER) has already been set

SAP Error Message - Details

• Message type: E = Error

• Message class: CATSXT - Time Sheet

• Message number: 144

• Message text: Additions not possible - key (COUNTER) has already been set

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CATSXT144 - Additions not possible - key (COUNTER) has already been set ?

  The SAP error message CATSXT144, which states "Additions not possible - key (COUNTER) has already been set," typically occurs in the context of the Cross-Application Time Sheet (CATS) when you are trying to add a new entry or modify an existing one, but the system has detected that a key (in this case, a counter) has already been assigned to the record you are trying to modify.
  Cause:
  
  Duplicate Entry: The error usually arises when there is an attempt to add a new time entry for a specific period or project that already has an entry with the same key (counter).
  Incorrect Data Entry: It may also occur if there is an attempt to modify an existing entry without following the correct procedures, leading to conflicts in the data.
  System Configuration: Sometimes, the configuration settings in the CATS module may not allow for certain types of modifications or additions based on the current status of the entries.
  
  Solution:
  
  Check Existing Entries: Review the existing time entries for the specific period or project to ensure that you are not trying to create a duplicate entry. You can do this by navigating to the relevant CATS transaction and checking the entries.
  Modify Instead of Add: If you need to change an existing entry, use the appropriate transaction to modify the entry rather than trying to add a new one.
  Consult with Administrator: If you believe that the entry should be allowed, consult with your SAP administrator or support team to check if there are any configuration settings that need to be adjusted.
  Error Logs: Check the system logs for any additional error messages or warnings that might provide more context about the issue.
  Transaction Codes: Use transaction codes like CATS or CAT2 to view and manage time entries effectively.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to CATS and this specific error message.
  Documentation: Review the SAP documentation for CATS to understand the data model and how entries are managed.
  User Training: Ensure that users are trained on how to properly enter and modify time entries in CATS to avoid common pitfalls that lead to this error.
  
  If the issue persists after following these steps, it may be necessary to escalate the problem to SAP support for further investigation.