How To Fix M3786 - Inventory management is not defined for the follow-up material

SAP Error Message - Details

• Message type: E = Error

• Message class: M3 - Material Master

• Message number: 786

• Message text: Inventory management is not defined for the follow-up material

What causes this issue?

You have specified a follow-up material for whose material type
inventory management is not defined. This is not allowed.

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?

Specify a follow-up material for whose material type inventory
management is defined.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M3786 - Inventory management is not defined for the follow-up material ?

  The SAP error message M3786, which states "Inventory management is not defined for the follow-up material," typically occurs in the context of inventory management and material master data. This error indicates that the system is unable to process a transaction because the follow-up material (the material that is supposed to be linked or referenced) does not have inventory management settings configured.
  Cause:
  
  Missing Inventory Management Settings: The follow-up material does not have inventory management activated in its material master record.
  Incorrect Material Type: The material type of the follow-up material may not support inventory management.
  Configuration Issues: There may be issues in the configuration settings for the material type or the plant settings in SAP.
  
  Solution:
  To resolve the M3786 error, you can follow these steps:
  
  
  Check Material Master Data:
  
  Go to the material master record of the follow-up material using transaction code MM03.
  Check the "Plant Data / Storage" view to ensure that inventory management is activated for the material.
  If it is not activated, you may need to create or change the material master record using transaction code MM02 and ensure that the relevant fields for inventory management are filled out correctly.
  
  
  
  Verify Material Type:
  
  Ensure that the material type assigned to the follow-up material supports inventory management. You can check this in the configuration settings (transaction code SPRO).
  Navigate to Logistics > Material Management > Material Master > Basic Settings > Material Types and verify the settings for the material type.
  
  
  
  Check Plant Settings:
  
  Ensure that the plant settings for the follow-up material are correctly configured to allow for inventory management.
  You can check this in the same configuration area as above.
  
  
  
  Consult with SAP Basis or Functional Team:
  
  If you are unsure about making changes to the material master or configuration settings, consult with your SAP Basis or functional team for assistance.
  
  
  
  Testing:
  
  After making the necessary changes, test the transaction again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  MM03: Display Material Master
  MM02: Change Material Master
  SPRO: Customizing Implementation Guide
  
  
  Material Master Views: Ensure that the relevant views (like Basic Data, Purchasing, and Plant Data) are properly maintained.
  Documentation: Refer to SAP Help documentation for detailed information on material master data and inventory management settings.
  
  By following these steps, you should be able to resolve the M3786 error and ensure that the follow-up material is properly configured for inventory management in SAP.