How To Fix MPE_CM_EFFECTIVITY079 - BOM header quantity for material &1 must be 1

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_CM_EFFECTIVITY - Message Class for Parameter Effectivity

• Message number: 079

• Message text: BOM header quantity for material &1 must be 1

What causes this issue?

BOM header quantity for material &V1& must be 1 because it is
of Complex Assembly Type Major Assemblies.

System Response

If the material type of material is identified as Major Assemblies
then the quantity of such BOM header should always be 1 because
Major Assemblies with multiple quantity is not supported.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_CM_EFFECTIVITY079 - BOM header quantity for material &1 must be 1 ?

  The SAP error message MPE_CM_EFFECTIVITY079 indicates that there is an issue with the Bill of Materials (BOM) header quantity for a specific material. The error message states that the BOM header quantity must be set to 1. This typically occurs in the context of configuring or managing BOMs in SAP, particularly when dealing with configurable materials.
  
  Cause:
  The error is triggered when the BOM header quantity for a material is not set to 1. In SAP, BOMs are used to define the components that make up a product, and the header quantity specifies how many units of the BOM are being defined. If this quantity is anything other than 1, it can lead to inconsistencies or errors in the configuration of the material.
  
  Solution:
  To resolve this error, you need to check and correct the BOM header quantity for the affected material. Here are the steps to do this:
  
  
  Access the BOM:
  
  Go to the transaction