How To Fix MMRP01239 - You cannot add components to phantom assemblies

SAP Error Message - Details

• Message type: E = Error

• Message class: MMRP01 - Rapid Planning Matrix

• Message number: 239

• Message text: You cannot add components to phantom assemblies

What causes this issue?

In the planned order &V1&, you tried adding a new component to a phantom
assembly.

System Response

The system cannot change the order.

How to fix this error?

You can only add new components at the highest BOM level. You can only
make changes to the structure of a phantom assembly in the master data.
However, any changes to the master data only has an effect on newly
created or newly exploded planned orders.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MMRP01239 - You cannot add components to phantom assemblies ?

  The SAP error message MMRP01239, which states "You cannot add components to phantom assemblies," typically occurs when you are trying to add components to a phantom assembly in the SAP system. Phantom assemblies are special types of assemblies that are not stocked as separate items but are used in the bill of materials (BOM) to simplify the structure of complex products.
  Cause:
  The error arises because:
  
  Phantom Assembly Definition: Phantom assemblies are defined in the system to act as placeholders in a BOM. They are not treated as independent stock items, and therefore, you cannot add components directly to them.
  BOM Structure: The structure of the BOM for a phantom assembly is designed to automatically include its components in the parent assembly's BOM, rather than allowing for direct component additions.
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Review BOM Structure: Check the BOM structure for the phantom assembly. Ensure that the components you want to add are already included in the BOM of the phantom assembly. If they are not, you will need to modify the BOM of the phantom assembly itself.
  
  
  Modify Phantom Assembly: If you need to add components, you should do so in the BOM of the phantom assembly rather than trying to add them directly to the phantom assembly itself.
  
  
  Use Alternative Assemblies: If the components need to be treated as separate stock items, consider using a regular assembly instead of a phantom assembly.
  
  
  Consult Documentation: Refer to SAP documentation or your organization's SAP guidelines for managing BOMs and phantom assemblies to ensure compliance with best practices.
  
  
  Check User Permissions: Ensure that you have the necessary permissions to modify BOMs and assemblies in the SAP system.
  
  
  Related Information:
  
  Phantom Assemblies: Understand the concept of phantom assemblies in SAP, which are used to simplify BOMs and are not intended for inventory management.
  BOM Management: Familiarize yourself with BOM management in SAP, including how to create, modify, and manage BOMs effectively.
  SAP Support: If the issue persists, consider reaching out to your SAP support team or consulting SAP Notes for any specific patches or updates related to this error.
  
  By following these steps, you should be able to address the MMRP01239 error effectively.