How To Fix LB104 - The use of units of measure for material &1 cannot be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: LB - Logistics: Batch - Management

• Message number: 104

• Message text: The use of units of measure for material &1 cannot be changed

What causes this issue?

You want to change the <DS:DE.KZWSO>units of measure usage</> although
proportion units or product units have already been defined for
material &V1&.

System Response

Your entry is not allowed and the system may reset it to the original
value if necessary.

How to fix this error?

If you are sure you want to change the units of measure that are used
for the material, you have to delete all proportion units and product
units first.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message LB104 - The use of units of measure for material &1 cannot be changed ?

  The SAP error message LB104 indicates that there is an issue with changing the units of measure (UoM) for a specific material. This error typically arises when you attempt to modify the unit of measure for a material that is already in use in various transactions or has certain dependencies that prevent changes.
  Cause:
  
  Material Status: The material may be in a status that does not allow changes, such as being locked or in use in open purchase orders, sales orders, or stock movements.
  Dependencies: The material might have existing stock or transactions that are tied to the current unit of measure, making it impossible to change without first addressing those dependencies.
  Configuration Settings: The configuration settings in the material master may restrict changes to the unit of measure.
  Data Consistency: There may be inconsistencies in the data that prevent the change from being processed.
  
  Solution:
  
  Check Material Status: Ensure that the material is not locked or in a status that prevents changes. You can check the material status in the material master record.
  Review Open Transactions: Look for any open purchase orders, sales orders, or stock movements that are associated with the material. You may need to close or adjust these transactions before changing the unit of measure.
  Change UoM in the Right Context: If you need to change the unit of measure, consider creating a new material with the desired unit of measure instead of changing the existing one.
  Consult Configuration: If you have access to configuration settings, check if there are any restrictions in the material master configuration that prevent changes to the unit of measure.
  Use Transaction Codes: Use transaction codes like MM02 (Change Material) to attempt the change, and check for any additional error messages that may provide more context.
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting the SAP Help Portal for further assistance.
  
  Related Information:
  
  Material Master Data: Understanding how material master data is structured and managed in SAP can help in troubleshooting issues related to units of measure.
  Unit of Measure Configuration: Familiarize yourself with how units of measure are configured in SAP, including base units, alternative units, and conversion factors.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error message or provide additional guidance on handling unit of measure changes.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.