How To Fix ALSMEX011 - Master record field already assigned

ALSMEX011 - Overview

• Message type: E = Error

• Message class: ALSMEX - Message Class for Legacy Data Transfer

• Message number: 011

• Message text: Master record field already assigned

What causes this issue?

You already assigned the selected master record field to a field in the
input file.

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?

Cancel the existing assignment of the asset master record field. Or
assign the selected field of the input file to a different master
record field.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

ALSMEX011 - Details

• The SAP error message ALSMEX011: Master record field already assigned typically occurs when you are trying to upload data into the SAP system using the LSMW (Legacy System Migration Workbench) tool, and there is an issue with the assignment of fields in the master data record.
  
  Cause:
  This error usually arises due to one of the following reasons:
  
  Duplicate Assignments: The field you are trying to assign in the master record is already assigned to another field or has already been populated in the current session.
  Incorrect Mapping: The mapping of fields in the LSMW project may not be set up correctly, leading to conflicts in data assignment.
  Data Integrity Issues: The data being uploaded may have integrity issues, such as trying to assign a value to a field that is not allowed or is already filled.
  
  
  Solution:
  To resolve the ALSMEX011 error, you can follow these steps:
  
  
  Check Field Assignments:
  
  Review the field assignments in your LSMW project.