How To Fix MPE_CM_EFFECTIVITY078 - BOM item 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: 078

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

What causes this issue?

BOM item quantity for material &V1& must be 1 because it is
of Complex Assembly Type Installation Kit.

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

System Response

If the material type of material is identified as Installation Kit
then the quantity of such BOM item should always be 1 because
Installation Kit with multiple quantity is not supported.

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_EFFECTIVITY078 - BOM item quantity for material &1 must be 1 ?

  The SAP error message MPE_CM_EFFECTIVITY078 indicates that there is an issue with the Bill of Materials (BOM) item quantity for a specific material. The error message states that the quantity for the BOM item must be set to 1. This typically occurs in the context of configuration or variant BOMs, where the system expects a specific quantity for the components.
  Cause:
  
  Incorrect BOM Configuration: The BOM item for the material is configured with a quantity other than 1, which is not allowed in certain contexts, especially for configurable materials.
  Material Master Settings: The material master settings may not be aligned with the requirements for the BOM, leading to discrepancies.
  Variant Configuration: If the material is part of a variant configuration, the system may require that the quantity of components in the BOM be set to 1 to ensure proper configuration.
  
  Solution:
  
  
  Check BOM Configuration:
  
  Go to the BOM transaction (CS02) and check the BOM for the material in question.
  Ensure that the quantity for the BOM item is set to 1. If it is not, change it to 1 and save the BOM.
  
  
  
  Review Material Master:
  
  Check the material master data (MM03) for the material to ensure that it is correctly set up for use in BOMs.
  Verify that the material type and other relevant settings are appropriate for the BOM configuration.
  
  
  
  Adjust Variant Configuration:
  
  If the material is part of a variant configuration, ensure that the configuration profile is set up correctly and that the components are defined with the correct quantities.
  You may need to consult with a configuration expert or refer to the documentation for variant configuration in SAP.
  
  
  
  Testing:
  
  After making the necessary changes, test the configuration or transaction that triggered the error to ensure that the issue is resolved.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CS01: Create BOM
  CS02: Change BOM
  CS03: Display BOM
  MM01: Create Material
  MM02: Change Material
  MM03: Display Material
  
  
  
  Documentation: Refer to SAP Help documentation for BOM and variant configuration for more detailed guidance on setting up BOMs and handling configuration issues.
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to BOM configurations and error messages.
  
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in materials management and BOMs.