How To Fix MD765 - WBS BOM for production lot & already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: MD - Material Requirements Planning (MRP)

• Message number: 765

• Message text: WBS BOM for production lot & already exists

What causes this issue?

Production lot &V1& already has a WBS BOM. If you specify a reference
production lot for this production lot, the system will not use the
already existing WBS BOM. Instead, the system uses the WBS BOM of the
reference production lot.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MD765 - WBS BOM for production lot & already exists ?

  The SAP error message MD765 indicates that there is an issue with the Bill of Materials (BOM) for a Work Breakdown Structure (WBS) element in relation to a production lot. Specifically, it means that a BOM for the specified production lot and WBS already exists, which can prevent the creation of a new BOM or the modification of an existing one.
  Cause:
  
  Duplicate BOM Entry: The most common cause of this error is that a BOM for the specified production lot and WBS element has already been created in the system.
  Incorrect Data Entry: There may be a mistake in the data entry, such as using the wrong production lot or WBS element.
  System Configuration: There could be configuration settings in SAP that enforce unique BOM entries for specific production lots and WBS elements.
  
  Solution:
  
  
  Check Existing BOMs: 
  
  Use transaction code CS03 (Display BOM) to check if a BOM already exists for the specified production lot and WBS element. If it does, you may need to modify or delete the existing BOM instead of creating a new one.
  
  
  
  Review Data Entry: 
  
  Ensure that you are entering the correct production lot and WBS element. Double-check for any typos or incorrect selections.
  
  
  
  Delete or Modify Existing BOM: 
  
  If you find that the existing BOM is not needed, you can delete it using transaction code CS02 (Change BOM) or CS01 (Create BOM) if you need to make modifications.
  
  
  
  Consult Documentation: 
  
  Review any relevant documentation or guidelines within your organization regarding BOM creation and management to ensure compliance with internal processes.
  
  
  
  Check Configuration Settings: 
  
  If the issue persists, consult with your SAP administrator or technical team to review the configuration settings related to BOMs and WBS elements. They may need to adjust settings to allow for the creation of multiple BOMs if that is appropriate for your business process.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CS01: Create BOM
  CS02: Change BOM
  CS03: Display BOM
  MD04: Stock/Requirements List (to check stock levels and requirements)
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to BOM management and WBS elements.
  
  
  Documentation: Refer to SAP Help documentation for detailed information on BOM management and WBS elements.
  
  
  If the problem continues after following these steps, it may be beneficial to engage with your SAP support team for further assistance.