How To Fix FT026 - Posting key & is not defined for special sales

FT026 - Overview

• Message type: E = Error

• Message class: FT - FI Table Maintenance Error Messages

• Message number: 026

• Message text: Posting key & is not defined for special sales

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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FT026 - Details

• The SAP error message FT026, which states "Posting key & is not defined for special sales," typically occurs when there is an issue with the configuration of posting keys in the SAP system, particularly in the context of special sales processes (like sales returns, discounts, etc.).
  
  Cause:
  
  Missing Configuration: The posting key specified in the error message is not defined for the special sales transaction you are trying to execute. This can happen if the posting key has not been set up correctly in the system for the specific sales area or transaction type.
  Incorrect Posting Key: The posting key being used may not be appropriate for the type of transaction being processed.
  Sales Area Settings: The sales area settings may not include the necessary configurations for the posting key in question.
  
  
  Solution:
  
  
  Check Posting Key Configuration:
  
  Go to the SAP transaction code OB14 (for defining posting keys).
  Verify if the posting key in question is defined for