How To Fix KC051 - Internal error: Entry in COKA-Buffer not found

SAP Error Message - Details

• Message type: E = Error

• Message class: KC - Cost Collector

• Message number: 051

• Message text: Internal error: Entry in COKA-Buffer not found

What causes this issue?

The system could not find the entry with the following key in the COKA
float:
Object number = &v1&
Cost element = &v2&
Origin group = &v3&

System Response

An internal error has occurred. Processing stopped.

How to fix this error?

Notify your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KC051 - Internal error: Entry in COKA-Buffer not found ?

  The SAP error message KC051 ("Internal error: Entry in COKA-Buffer not found") typically occurs in the context of controlling (CO) module transactions, particularly when dealing with cost allocations or cost center accounting. This error indicates that the system is unable to find a specific entry in the COKA buffer, which is used for managing cost allocations.
  Causes:
  
  Data Inconsistency: There may be inconsistencies in the data that the system is trying to access, such as missing or corrupted entries in the database.
  Buffer Issues: The COKA buffer may not have been properly initialized or may have been cleared unexpectedly.
  Configuration Issues: Incorrect configuration settings in the controlling area or cost center settings can lead to this error.
  Program Errors: Bugs or issues in the custom ABAP programs or enhancements that interact with the CO module can also trigger this error.
  
  Solutions:
  
  
  Check Data Consistency:
  
  Use transaction codes like CKM3N or KSB1 to check for inconsistencies in the cost center or internal order data.
  Run consistency checks in the CO module to identify and rectify any discrepancies.
  
  
  
  Reinitialize the Buffer:
  
  Sometimes, simply reinitializing the COKA buffer can resolve the issue. This can be done by executing the relevant transaction or program that populates the buffer again.
  
  
  
  Review Configuration:
  
  Verify the configuration settings in the controlling area and ensure that all necessary settings for cost centers, internal orders, and other related objects are correctly defined.
  Check if any recent changes were made to the configuration that could have led to this issue.
  
  
  
  Check for Program Errors:
  
  If the error occurs during the execution of a custom program, review the code for any potential issues or bugs.
  Debug the program to identify where the error is occurring and make necessary corrections.
  
  
  
  SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that address this specific error. There may be patches or updates available that resolve known issues related to this error message.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including transaction codes, steps to reproduce the error, and any relevant logs.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in the CO module, such as KSB1 (Cost Centers: Actual Line Items) and CKM3N (Material Price Analysis).
  SAP Documentation: Review SAP documentation related to controlling and cost accounting for additional insights and troubleshooting steps.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the KC051 error in your SAP system.