How To Fix JIT00842 - Production number &1, CG type &2 has already been matched

JIT00842 - Overview

• Message type: E = Error

• Message class: JIT00 - JIT: Messages for JIT Process

• Message number: 842

• Message text: Production number &1, CG type &2 has already been matched

What causes this issue?

The components group with the external call number (production number)
&v1& and components group type &v2& (internal components group number
&v3&) has already been matched.

System Response

It is not permitted to match this components group again. Therefore the
components of this components group are not inclueded in the match.

How to fix this error?

If you still want to include the components group in the match, you
have to withdraw the match, which you have already carried out for this
components group.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

JIT00842 - Details

• The SAP error message JIT00842 indicates that a production number and a corresponding control group (CG type) have already been matched in the system. This typically occurs in the context of Just-In-Time (JIT) production processes, where specific production numbers are linked to control groups for tracking and management purposes.
  
  Cause:
  
  Duplicate Matching: The primary cause of this error is an attempt to match a production number that has already been matched to a control group. This can happen if the same production number is processed multiple times or if there is an attempt to reprocess a transaction that has already been completed.
  Data Entry Errors: Manual data entry errors or incorrect transaction processing can lead to this situation.
  System 
  Configuration Issues: In some cases, configuration settings in the JIT process may lead to unexpected behavior, causing the system to incorrectly identify a match.
  
  
  Solution:
  
  Check Existing Matches: Verify the existing matches for the production number and