How To Fix /ACCGO/CAS_QF012 - Shadow item already exists for &1 &2, item number &3, side &4

/ACCGO/CAS_QF012 - Overview

• Message type: E = Error

• Message class: /ACCGO/CAS_QF -

• Message number: 012

• Message text: Shadow item already exists for &1 &2, item number &3, side &4

Self-Explanatory Message

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/ACCGO/CAS_QF012 - Details

• The SAP error message /ACCGO/CAS_QF012 Shadow item already exists for &1 &2, item number &3, side &4 typically occurs in the context of the SAP General Ledger or Financial Accounting modules, particularly when dealing with shadow items in the context of accounting documents or postings.
  
  Cause:
  This error indicates that there is an attempt to create a shadow item (a temporary or auxiliary item used for processing) that already exists in the system for the specified parameters. The parameters represented by &1, &2, &3, and &4 usually refer to specific identifiers such as company code, document type, item number, and side (debit/credit).
  Common causes for this error include:
  
  Duplicate Posting: An attempt to post a transaction that has already been processed.
  Concurrency Issues: Multiple processes trying to create or modify the same shadow item simultaneously.
  Data Integrity Issues: Corruption or inconsistency in the database that leads to the system believing a shadow item already exists.
  
  
  Solution:
  To resolve