How To Fix MM023 - & is still used as the production unit for material & in plant &

SAP Error Message - Details

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 023

• Message text: & is still used as the production unit for material & in plant &

What causes this issue?

The unit of measure &V1& is still used as the
<DS:GLOS.production_unit>production unit</> in at least one plant and
may not therefore be deleted.

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?

If you want to delete the unit of measure nevertheless, change the
production unit to another unit in the plants concerned.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MM023 - & is still used as the production unit for material & in plant & ?

  The SAP error message MM023 typically indicates that there is an issue with the material master data, specifically related to the unit of measure (UoM) for a material in a particular plant. The error message usually states something like "Material & is still used as the production unit for material & in plant &."
  Cause:
  
  Material Master Configuration: The material is still being used in production or has existing transactions that reference it, which prevents changes to its unit of measure.
  Open Purchase Orders or Production Orders: There may be open purchase orders, production orders, or stock movements that are still using the material in question.
  Incorrect Deletion Flag: The deletion flag for the material may not be set correctly, or the material is not marked for deletion in the system.
  Dependencies in Other Modules: The material may be linked to other modules (like Sales and Distribution or Production Planning) that are still referencing it.
  
  Solution:
  
  Check Open Transactions: Review any open purchase orders, production orders, or stock movements that may be using the material. You can use transaction codes like ME2N (Purchase Orders by PO Number) or CO03 (Display Production Order) to check for open transactions.
  Set Deletion Flag: If the material is no longer needed, ensure that you set the deletion flag correctly. This can be done in the material master record (transaction MM02) under the relevant views.
  Change Unit of Measure: If you need to change the unit of measure, ensure that there are no open transactions referencing the material. You may need to close or delete these transactions first.
  Consult with Other Modules: If the material is linked to other modules, consult with the relevant teams to ensure that there are no dependencies preventing the change.
  Use Transaction MM06: You can use transaction MM06 to mark the material for deletion, but ensure that it is not being used in any active transactions.
  
  Related Information:
  
  Material Master Views: Understand the different views in the material master (Basic Data, Purchasing, Sales, etc.) and how they relate to the unit of measure.
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing materials, such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material).
  SAP Notes: Check SAP Notes for any specific issues or patches related to the MM023 error message.
  Documentation: Review SAP documentation or help files for more detailed information on material management and unit of measure settings.
  
  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 MM (Materials Management) for further assistance.