How To Fix 29662 - You cannot change usage from PM only due to existing BOM(s)

SAP Error Message - Details

• Message type: E = Error

• Message class: 29 - Bills of Material

• Message number: 662

• Message text: You cannot change usage from PM only due to existing BOM(s)

What causes this issue?

You want to change the definition of a BOM usage that is relevant to PM
only.
When you enter material items for a BOM with this usage, the system
does <ZH>not</> check that the material exists in a specific plant.

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?

You can no longer change the definition of a BOM usage that is relevant
to PM only, because:
If you enter material items whose item statuses support use in other
application areas (such as production), the system requires data that
is specific to a plant.
BOMs with the PM-specific usage already exist
Check whether you need to define a new BOM usage.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 29662 - You cannot change usage from PM only due to existing BOM(s) ?

  The SAP error message 29662, "You cannot change usage from PM only due to existing BOM(s)," typically occurs when you attempt to change the usage of a material that is currently associated with a Bill of Materials (BOM) in a way that is not allowed due to its current configuration.
  Cause:
  This error arises when:
  
  You are trying to change the usage of a material from "PM only" (Plant Maintenance) to another usage type while there are existing BOMs linked to that material.
  The system restricts changes to ensure data integrity, as changing the usage could affect the existing BOMs and their associated components.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing BOMs: 
  
  Use transaction code CS03 to display the BOMs associated with the material. Verify if there are any BOMs that are linked to the material in question.
  
  
  
  Delete or Modify BOMs:
  
  If the BOMs are no longer needed, you can delete them using transaction code CS02 (Change BOM) or CS01 (Create BOM) to modify them as necessary.
  If you need to keep the BOMs, consider whether you can create a new material with the desired usage instead of changing the existing one.
  
  
  
  Change Usage:
  
  Once the BOMs are deleted or modified, you can attempt to change the usage of the material again using transaction code MM02 (Change Material).
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for any specific configurations or restrictions that may apply to your organization.
  
  
  
  Check Authorizations:
  
  Ensure that you have the necessary authorizations to make changes to BOMs and material master records.
  
  
  
  Related Information:
  
  BOM (Bill of Materials): A BOM is a comprehensive list of materials, components, and assemblies required to manufacture a product. In SAP, BOMs are crucial for production planning and inventory management.
  Material Master: The material master record contains all the information related to a material, including its usage type, which can be set for various purposes like production, sales, or maintenance.
  Usage Types: In SAP, materials can have different usage types, such as "PM only," "Production," "Sales," etc. Changing the usage type can affect how the material is utilized within the system.
  
  If you continue to face issues after following these steps, it may be beneficial to reach out to your SAP support team for further assistance.