How To Fix LB100 - Base unit of measure & cannot be changed as prop./prod. unit available

SAP Error Message - Details

• Message type: E = Error

• Message class: LB - Logistics: Batch - Management

• Message number: 100

• Message text: Base unit of measure & cannot be changed as prop./prod. unit available

What causes this issue?

You have tried to change the base unit of measure. This is not allowed
as you have already maintained <DS:DE.LRMEI_WS>proportion units or
product units</> for the material.

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?

Please change the base unit of measure to the unit of measure &V1&
again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message LB100 - Base unit of measure & cannot be changed as prop./prod. unit available ?

  The SAP error message LB100 indicates that the base unit of measure (UoM) for a material cannot be changed because there are existing stock or production orders that reference the current unit of measure. This is a common issue when trying to modify the base unit of measure for materials that are already in use in the system.
  
  Cause:
  
  Existing Stock: There are stock quantities in the warehouse that are measured in the current base unit of measure.
  Production Orders: There are open production orders that reference the material with the current base unit of measure.
  Dependencies: Other dependent objects (like purchase orders, sales orders, etc.) may also be linked to the material in its current unit of measure.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Stock Levels:
  
  Use transaction code MMBE to check if there are any stock quantities in the current base unit of measure.
  If stock exists, you may need to either