How To Fix EA_FIN_UI_DECO135 - Change to posting key is invalid and is ignored in line &1

EA_FIN_UI_DECO135 - Overview

• Message type: E = Error

• Message class: EA_FIN_UI_DECO - Messages for Front End/Back End Decoupling

• Message number: 135

• Message text: Change to posting key is invalid and is ignored in line &1

What causes this issue?

You can only change the posting key from 40 to 50 (or the reverse).

System Response

The system sets the posting key back to its previous value.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EA_FIN_UI_DECO135 - Change to posting key is invalid and is ignored in line &1 ?

  The SAP error message EA_FIN_UI_DECO135 indicates that there is an issue with the posting key being used in a financial document. Specifically, the message states that a change to the posting key is invalid and is ignored in line &1. This typically occurs during the entry of financial transactions in the SAP system, particularly in the context of document entry screens.
  
  Cause:
  
  Invalid Posting Key: The posting key being used is not valid for the type of transaction being processed. Each posting key is associated with specific types of transactions (e.g., debit or credit) and account types (e.g., customer, vendor, asset).
  
  Configuration Issues: There may be configuration issues in the Financial Accounting (FI) module that prevent the use of certain posting keys in specific scenarios.
  Document Type Restrictions: The document type being used may not allow the posting key that is being attempted.
  User Authorizations: The user may not have the necessary authorizations to use