How To Fix KC303 - COKEY inconsistent: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: KC - Cost Collector

• Message number: 303

• Message text: COKEY inconsistent: &1

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 KC303 - COKEY inconsistent: &1 ?

  The SAP error message KC303 COKEY inconsistent: &1 typically indicates that there is an inconsistency in the cost object key (COKEY) in the Controlling (CO) module. This error can occur in various scenarios, such as during the posting of costs, when executing reports, or when performing data uploads.
  Cause:
  
  Data Inconsistency: The cost object key may not match the expected format or may not exist in the system.
  Master Data Issues: There may be missing or incorrect master data related to the cost object.
  Configuration Issues: The configuration settings for the controlling area or cost object may not be set up correctly.
  Transaction Errors: Errors during data entry or transaction processing can lead to inconsistencies.
  
  Solution:
  
  Check the Cost Object Key: Verify that the cost object key referenced in the error message is valid and exists in the system. You can do this by checking the relevant master data in the CO module.
  Review Master Data: Ensure that all necessary master data (e.g., cost centers, internal orders, projects) is correctly set up and active.
  Analyze Configuration: Review the configuration settings for the controlling area and ensure that they are correctly defined. This includes checking the settings for cost elements and cost object types.
  Transaction Logs: Check transaction logs or error logs to identify any specific transactions that may have caused the inconsistency.
  Data Consistency Check: Use transaction codes like CKM3N (for material ledger) or KAH3 (for cost center) to perform consistency checks and identify any discrepancies.
  Repost Transactions: If the error occurred during a posting, consider reversing the transaction and reposting it after correcting any identified issues.
  Consult Documentation: Refer to SAP documentation or notes related to the specific error message for additional guidance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in the CO module, such as KSB1 (cost center report), KOB1 (order report), and CJI3 (project report).
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message KC303.
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By following these steps, you should be able to identify and resolve the inconsistency causing the KC303 error in your SAP system.