How To Fix IQ124 - Serial number &1 is assigned to material &2 but not to material &3

SAP Error Message - Details

• Message type: E = Error

• Message class: IQ -

• Message number: 124

• Message text: Serial number &1 is assigned to material &2 but not to material &3

What causes this issue?

Serial number &V1& is assigned to material &V2& in installed base
management. The specified material number &V3& deviates from this.

System Response

The system stops processing material number &V2&.

How to fix this error?

This can occur if the material number for the serial number was
changed. For example, by material postings or directly.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message IQ124 - Serial number &1 is assigned to material &2 but not to material &3 ?

  The SAP error message IQ124 indicates a problem related to serial number management in the SAP system. Specifically, it means that a serial number is assigned to one material but is being referenced or attempted to be assigned to another material, which is not allowed.
  Cause:
  
  Serial Number Assignment: The serial number in question is already assigned to a specific material (Material &2) and cannot be reassigned to another material (Material &3).
  Configuration Issues: There may be configuration settings in the system that dictate how serial numbers are managed and assigned.
  Data Integrity Issues: There could be inconsistencies in the data, such as incorrect material master records or serial number records.
  
  Solution:
  
  
  Check Serial Number Assignment:
  
  Verify the serial number assignment in the system. Use transaction codes like IQ01 (Create Serial Number), IQ02 (Change Serial Number), or IQ03 (Display Serial Number) to check the details of the serial number and its assigned material.
  Ensure that the serial number is not being used by another material in the system.
  
  
  
  Reassign Serial Number:
  
  If you need to reassign the serial number to a different material, you may need to first unassign it from the current material. This can typically be done through the appropriate transaction codes or by following the correct process for unassigning serial numbers.
  
  
  
  Review Configuration:
  
  Check the configuration settings related to serial number management in the SAP system. Ensure that the settings align with your business processes and requirements.
  
  
  
  Data Consistency Check:
  
  Run data consistency checks to identify any discrepancies in the material master or serial number records. This can help in identifying any underlying issues that may be causing the error.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for more detailed guidance on serial number management and troubleshooting related errors.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IQ01, IQ02, IQ03, and others related to inventory management and serial number handling.
  SAP Notes: Check SAP Notes for any known issues or patches related to serial number management that may address this error.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to perform actions related to serial number assignments.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant for further assistance.