How To Fix ON_DIR_MAT001 - Mapping from external key to internal ID failed

ON_DIR_MAT001 - Overview

• Message type: E = Error

• Message class: ON_DIR_MAT -

• Message number: 001

• Message text: Mapping from external key to internal ID failed

What causes this issue?

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

System Response

How to fix this error?

Contact your system administrator.

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 ON_DIR_MAT001 - Mapping from external key to internal ID failed ?

  The SAP error message ON_DIR_MAT001 indicates that there is a failure in mapping an external key to an internal ID, typically when dealing with materials or other master data in SAP. This error often arises during data uploads, migrations, or integrations where external identifiers (like those from legacy systems) need to be converted to SAP's internal identifiers.
  Causes:
  
  Missing Mapping: The external key you are trying to use does not have a corresponding internal ID in the SAP system.
  Incorrect Configuration: The mapping configuration between the external and internal IDs may not be set up correctly.
  Data Quality Issues: The external data may contain errors, such as typos or formatting issues, that prevent successful mapping.
  Authorization Issues: The user executing the operation may not have the necessary permissions to access the required data.
  Data Not Loaded: The internal ID may not yet exist in the system if the data load process is not completed.
  
  Solutions:
  
  Check Mapping Configuration: