How To Fix F5204 - Postings for account type & ( posting key & ) are not defined

F5204 - Overview

• Message type: E = Error

• Message class: F5 - Document Editing

• Message number: 204

• Message text: Postings for account type & ( posting key & ) are not defined

What causes this issue?

The data that was entered is inconsistent. Account type "&v1&" must not
be used in conjunction with posting key "&v2&".

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

F5204 - Details

• The SAP error message F5204 indicates that there is an issue with the configuration of the account type and posting key in the system. Specifically, it means that the system cannot find a valid posting configuration for the specified account type and posting key combination. This error typically occurs during the posting of financial transactions in the SAP system.
  
  Cause:
  
  Missing Configuration: The account type and posting key combination is not defined in the system. This can happen if the configuration for the specific account type (e.g., asset, liability, revenue) and posting key (e.g., debit or credit) has not been set up correctly in the Financial Accounting (FI) module.
  Incorrect Posting Key: The posting key being used may not be appropriate for the account type being posted to.
  Account Type Restrictions: Certain account types may have restrictions on which posting keys can be used with them.
  
  
  Solution:
  
  
  Check Configuration:
  
  Go to the SAP Customizing Implementation Guide (SPRO).
  Navigate