How To Fix CM127 - You cannot allocate to another bill of material.

CM127 - Overview

• Message type: E = Error

• Message class: CM - Task list messages: Material component allocations

• Message number: 127

• Message text: You cannot allocate to another bill of material.

What causes this issue?

You have already maintained component allocations in your task list and
you want to allocate additional components. However, you can only
allocate components from <ZH>one</> bill of material to <ZH>one</> task
list. You cannot make allocations from different bills of material.

System Response

INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

CM127 - Details

• The SAP error message CM127 ("You cannot allocate to another bill of material") typically occurs when there is an attempt to allocate components to a bill of materials (BOM) that is not allowed due to certain constraints or settings in the system. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  Incorrect BOM Reference: The system may be trying to allocate components to a BOM that is not the correct or active version.
  BOM Status: The BOM may be in a status that does not allow changes or allocations (e.g., it may be marked as inactive).
  Component Assignment: The components you are trying to allocate may not be assigned to the BOM in question.
  Plant or Location Issues: The BOM may be specific to a certain plant or location, and the allocation is being attempted in a different context.
  Authorization Issues: The user may not have the necessary permissions to make changes