How To Fix FMFEES023 - You cannot change the fee schedule of a fee line except in the invoice

FMFEES023 - Overview

• Message type: E = Error

• Message class: FMFEES - Fees

• Message number: 023

• Message text: You cannot change the fee schedule of a fee line except in the invoice

Self-Explanatory Message

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FMFEES023 - Details

• The SAP error message FMFEES023 indicates that you are trying to change the fee schedule of a fee line in a context where it is not allowed. Specifically, this error typically occurs when you attempt to modify the fee schedule of a fee line that has already been created in a document (like a billing document or an invoice) outside of the invoice context.
  
  Cause:
  
  Context Restriction: The fee schedule can only be modified in the context of the invoice. If you are trying to change it in a different context (like a fee line in a contract or a different document), the system will prevent this action.
  Document Status: The document may be in a status that does not allow changes to fee lines.
  Configuration Settings: There may be specific configuration settings in the SAP system that restrict changes to fee schedules.
  
  
  Solution:
  
  Change in Invoice Context: If you need to change the fee schedule,