How To Fix CMAC_FEE_CALC318 - Error while checking document header

SAP Error Message - Details

• Message type: E = Error

• Message class: CMAC_FEE_CALC - Messages for Student Accounting

• Message number: 318

• Message text: Error while checking document 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 CMAC_FEE_CALC318 - Error while checking document header ?

  The SAP error message CMAC_FEE_CALC318 typically indicates an issue related to the calculation of fees in the context of a document header. This error can arise in various scenarios, particularly when dealing with financial documents, billing, or fee calculations in SAP.
  Cause:
  The error can be caused by several factors, including but not limited to:
  
  
  Missing or Incorrect Data: Required fields in the document header may be missing or contain incorrect values. This could include missing account assignments, incorrect document types, or invalid currency settings.
  
  
  Configuration Issues: There may be configuration issues in the fee calculation settings or in the related modules (e.g., Financial Accounting, Controlling).
  
  
  Custom Code or Enhancements: If there are custom developments or enhancements in the system, they might interfere with the standard processing of fee calculations.
  
  
  Authorization Issues: The user may not have the necessary authorizations to perform the action related to the document header.
  
  
  System Bugs: Occasionally, there may be bugs in the SAP system that lead to unexpected behavior.
  
  
  Solution:
  To resolve the CMAC_FEE_CALC318 error, you can take the following steps:
  
  
  Check Document Header Data: Review the document header for any missing or incorrect information. Ensure that all required fields are filled out correctly.
  
  
  Review Configuration Settings: Check the configuration settings related to fee calculations. Ensure that all necessary settings are correctly configured in the relevant modules.
  
  
  Debug Custom Code: If there are any custom enhancements or modifications, review the code to ensure it is not causing the issue. You may need to debug the process to identify where it fails.
  
  
  Check Authorizations: Verify that the user has the necessary authorizations to perform the action. If not, work with your SAP security team to grant the required permissions.
  
  
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. There may be patches or updates available that resolve the issue.
  
  
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including the transaction code, steps to reproduce the error, and any relevant logs.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to fee calculations, such as FB60 (Enter Incoming Invoice) or FB70 (Enter Outgoing Invoice).
  SAP Documentation: Review SAP documentation related to fee calculation and financial document processing for additional insights.
  Community Forums: Check SAP community forums or user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the CMAC_FEE_CALC318 error in your SAP system.