How To Fix RM459 - Decoupled confirmation has already been post-executed for PDC no. &1

RM459 - Overview

• Message type: E = Error

• Message class: RM - Messages for Repetitive Manufacturing

• Message number: 459

• Message text: Decoupled confirmation has already been post-executed for PDC no. &1

What causes this issue?

The PDC backflush document &V1& is a backflush document for which the
goods issues and/or the production activities were originally
separated. In the mean time, however, these separated postings have
been carried out. Therefore, you can no longer reverse this document.

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?

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 RM459 - Decoupled confirmation has already been post-executed for PDC no. &1 ?

  The SAP error message RM459, which states "Decoupled confirmation has already been post-executed for PDC no. &1," typically occurs in the context of production order confirmations, particularly when using the Decoupled Confirmation (PDC) functionality in SAP. This error indicates that a confirmation for a specific Production Data Collection (PDC) number has already been processed, and the system does not allow for a duplicate confirmation.
  
  Cause:
  
  Duplicate Confirmation Attempt: The most common cause of this error is that there is an attempt to post a confirmation for a PDC number that has already been confirmed in the system.
  System Configuration: There may be specific configurations or settings in the system that prevent multiple confirmations for the same PDC number.
  Data Integrity Issues: There could be issues with data integrity or inconsistencies in the database that lead to the system believing that a confirmation has already been posted.
  
  
  Solution:
  
  
  Check Existing Confirmations: Verify if a confirmation has already