How To Fix MMRP01237 - Phantom assembly without material: Node &2 of order &1 will not be firmed

MMRP01237 - Overview

• Message type: E = Error

• Message class: MMRP01 - Rapid Planning Matrix

• Message number: 237

• Message text: Phantom assembly without material: Node &2 of order &1 will not be firmed

What causes this issue?

A phantom assembly exists at node &V2& of the planned order &V1& for
which you have not entered a material number in the access variant or
the assembly header.

System Response

The system will not firm the node &V2& of planned order &V1&.

How to fix this error?

If you want to firm the node despite this, enter a material in the
access variant or in the assembly header of the phantom assembly and
then reexplode the matrix using <DS:TRAN.RPMCALL>transaction RPMCALL</>.

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.

MMRP01237 - Details

• The SAP error message MMRP01237 indicates that there is a phantom assembly in a production order that does not have a corresponding material assigned to it. This typically occurs in the context of production planning and execution, particularly when dealing with phantom assemblies in a Bill of Materials (BOM).
  
  Cause:
  
  Missing Material Assignment: The phantom assembly node in the production order is not linked to a material master record. This can happen if the material was not created or if it was deleted.
  Incorrect BOM Configuration: The BOM for the phantom assembly may not be correctly configured, leading to the absence of a material reference.
  Order 
  Configuration Issues: The production order may have been created without properly referencing the necessary materials for the phantom assembly.
  
  
  Solution:
  
  Check Material Master: Verify that the material for the phantom assembly exists in the system. If it does not, create the material master record.
  Review BOM: Check the BOM associated with