How To Fix F4800 - Posting key 00 is reserved for account assignment models

F4800 - Overview

• Message type: E = Error

• Message class: F4 - Line items/balances/configuration

• Message number: 800

• Message text: Posting key 00 is reserved for account assignment models

What causes this issue?

Posting key 00 is reserved for account assignment models and therefore
you cannot make any further specifications for this posting key.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message F4800 - Posting key 00 is reserved for account assignment models ?

  The SAP error message F4800, which states "Posting key 00 is reserved for account assignment models," typically occurs when there is an attempt to use posting key 00 in a context where it is not allowed. Posting keys in SAP are used to define the type of transaction being processed, and each posting key has specific rules and restrictions.
  
  Cause:
  
  Incorrect Posting Key Usage: Posting key 00 is reserved for specific internal processes related to account assignment models and cannot be used for general postings.
  
  Configuration Issues: There may be a configuration issue in the Financial Accounting (FI) module where the posting keys are not set up correctly.
  Transaction Type: The transaction being processed may not support the use of posting key 00, leading to this error.
  
  
  Solution:
  
  Check Posting Key: Ensure that you are using the correct posting key for the transaction you are trying to perform. For general postings, use appropriate posting keys like