How To Fix VMP_MSG345 - Material &1 cannot be assigned as a manufacturing substitute

VMP_MSG345 - Overview

• Message type: E = Error

• Message class: VMP_MSG - VMP Message Manager

• Message number: 345

• Message text: Material &1 cannot be assigned as a manufacturing substitute

What causes this issue?

Material &V1& cannot be assigned as a manufacturing substitute.

System Response

If the material is an assembly in the <LS>Target</> Panel<(>,<)> the
system cannot assign the material as a manufacturing substitute.

How to fix this error?

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 VMP_MSG345 - Material &1 cannot be assigned as a manufacturing substitute ?

  SAP Error Message:
  VMP_MSG345 Material &1 cannot be assigned as a manufacturing substitute
  
  
  Cause:
  This error occurs when you try to assign a material as a manufacturing substitute in the SAP system, but the material does not meet the necessary criteria to be used as a substitute in the manufacturing process.
  Common reasons include:
  
  The material is not flagged or configured as a valid substitute material in the system.
  The material's status or master data settings prevent it from being used as a substitute (e.g., it is not a production-relevant material).
  The material does not belong to the same material group or does not have compatible characteristics required for substitution.
  The substitute assignment is attempted in a context where the material is not allowed (e.g., in a BOM or routing where the substitute is invalid).
  
  
  
  Solution:
  To resolve this error, check and correct the following:
  
  
  Material Master Data:
  
  Verify that the material intended as a substitute is correctly maintained in the material