How To Fix IM042 - Not a valid assembly

IM042 - Overview

• Message type: E = Error

• Message class: IM - Maintenance notifications

• Message number: 042

• Message text: Not a valid assembly

What causes this issue?

You selected an assembly which does not exist in the system.

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?

Call up the structure list or graphic and select a valid assembly, or
search for a valid assembly with the help of the matchcode.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IM042 - Not a valid assembly ?

  The SAP error message IM042, which states "Not a valid assembly," typically occurs in the context of Inventory Management (IM) or Material Management (MM) when dealing with assembly items or components. This error can arise due to various reasons, and understanding the cause is essential for finding an appropriate solution.
  Causes of IM042 Error
  
  
  Invalid Assembly Configuration: The assembly item may not be correctly configured in the system. This could include missing components or incorrect assembly structure.
  
  
  Material Master Issues: The material master record for the assembly or its components may be incomplete or incorrectly set up. This includes missing data in the relevant views (e.g., Basic Data, Purchasing, Sales, etc.).
  
  
  Incorrect BOM (Bill of Materials): If the assembly is linked to a BOM, there may be issues with the BOM itself, such as missing components or incorrect item categories.
  
  
  Status of the Assembly: The assembly item may be in a status that does not