How To Fix /ACCGO/CAS_FLLW_MSG426 - Error during creation of application header

SAP Error Message - Details

• Message type: E = Error

• Message class: /ACCGO/CAS_FLLW_MSG -

• Message number: 426

• Message text: Error during creation of application header

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 /ACCGO/CAS_FLLW_MSG426 - Error during creation of application header ?

  The SAP error message /ACCGO/CAS_FLLW_MSG426 typically occurs during the creation of an application header in the context of the SAP S/4HANA system, particularly when dealing with the Central Finance (CFIN) or similar financial applications. This error can arise due to various reasons, and understanding the cause is crucial for finding an appropriate solution.
  Possible Causes:
  
  Missing Configuration: The error may occur if there are missing configurations in the system related to the application header or the financial document being processed.
  Data Inconsistencies: Inconsistent or incomplete data in the source system or during the data transfer process can lead to this error.
  Authorization Issues: The user may not have the necessary authorizations to create or modify the application header.
  Technical Issues: There could be underlying technical issues, such as problems with the database or application server.
  Incorrect Mapping: If the mapping of fields between the source and target systems is incorrect, it can lead to errors during