How To Fix FMFG_AAPAY004 - Enter a Debit posting key and a Credit posting key

FMFG_AAPAY004 - Overview

• Message type: E = Error

• Message class: FMFG_AAPAY - Payment per Account Assignment

• Message number: 004

• Message text: Enter a Debit posting key and a Credit posting key

Self-Explanatory Message

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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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FMFG_AAPAY004 - Details

• The SAP error message FMFG_AAPAY004 indicates that a user is attempting to process a financial transaction without specifying both a debit posting key and a credit posting key. This error typically occurs in the context of financial accounting or funds management within SAP.
  
  Cause:
  
  Missing Posting Keys: The user has not entered the required debit and credit posting keys in the transaction.
  Incorrect Transaction Type: The transaction being processed may require specific posting keys that have not been provided.
  
  Configuration Issues: There may be issues with the configuration of the posting keys in the system, leading to the requirement for both keys not being met.
  
  
  Solution:
  
  
  Enter Posting Keys: Ensure that you enter both a debit posting key and a credit posting key in the relevant fields of the transaction. 
  
  Debit Posting Key: Typically starts with a '4' (e.g., 40 for customer debit).
  Credit Posting Key: Typically starts with a '5' (e.g., 50 for customer credit).
  
  
  
  Check Transaction