How To Fix FKKBW020 - Internal error in control: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: FKKBW - Messages for BW Extraction

• Message number: 020

• Message text: Internal error in control: &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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FKKBW020 - Internal error in control: &1 ?

  The SAP error message FKKBW020, which states "Internal error in control: &1," typically occurs in the context of the SAP Financial Accounting (FI) module, particularly when dealing with the posting of documents or during the execution of certain financial transactions. This error can be caused by various factors, including configuration issues, data inconsistencies, or problems with the underlying program logic.
  Possible Causes:
  
  Configuration Issues: Incorrect settings in the financial accounting configuration can lead to this error. This includes issues with document types, posting keys, or account determination settings.
  Data Inconsistencies: Inconsistent or corrupted data in the database can trigger internal errors. This might include missing or incorrect entries in relevant tables.
  Program Logic Errors: Bugs or issues in the underlying ABAP code or custom enhancements can lead to unexpected behavior and trigger this error.
  Authorization Issues: Lack of proper authorizations for the user executing the transaction can sometimes lead to internal errors.
  System Bugs: Occasionally, this error may be due to a bug in the SAP system itself, particularly if you are using an older version of SAP.
  
  Solutions:
  
  Check Configuration: Review the configuration settings in the Financial Accounting module. Ensure that all necessary settings are correctly defined and consistent.
  Data Consistency Check: Use transaction codes like SE11 or SE16 to check the relevant database tables for inconsistencies. You may also want to run consistency checks or use transaction code SARA to archive and delete old data if necessary.
  Debugging: If you have access to the ABAP debugger, you can try to debug the transaction that is causing the error to identify the exact point of failure.
  Review Authorizations: Ensure that the user has the necessary authorizations to perform the transaction. You can check this using transaction SU53 or by reviewing the user roles.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve known issues.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the transaction code, user ID, and any relevant logs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB01 (Post Document), FB50 (G/L Account Document), and others that may be related to the error.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  System Logs: Check the system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to diagnose and potentially resolve the FKKBW020 error in your SAP system.