How To Fix QF149 - Serial no. &3 already exists for confirmation no. &1, item no. &2

QF149 - Overview

• Message type: E = Error

• Message class: QF - Defects Recording

• Message number: 149

• Message text: Serial no. &3 already exists for confirmation no. &1, item no. &2

What causes this issue?

Serial number <(>&<)>3 already exists for confirmation number <(>&<)>1
with item number <(>&<)>2.

System Response

The system cannot automatically change the existing serial number.

How to fix this error?

Delete the existing defect data record in the transaction for changing
defects recording and restart the defect data transfer.

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 QF149 - Serial no. &3 already exists for confirmation no. &1, item no. &2 ?

  The SAP error message QF149 indicates that there is a duplicate serial number being used in a confirmation for a specific item. This typically occurs in the context of production confirmations or goods movements where serial numbers are tracked for individual items.
  
  Cause:
  The error arises when:
  
  You attempt to confirm a production order or goods movement with a serial number that has already been assigned to another confirmation for the same item.
  The system enforces unique serial number assignments for each item in a confirmation, and the serial number you are trying to use is already linked to a different confirmation.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Confirmations: 
  
  Review the existing confirmations for the specified confirmation number and item number to see where the serial number is already assigned.
  You can use transaction codes like CO11N (for production confirmations) or MB1A (for goods movements) to check the details.
  
  
  
  Use a Different