You are in the process of migrating Materials or Services in your system and during simulation, system throws below error message:
Conversion not valid; quantity types must be different
Conversion between XXX and YYY already exists
Reproducing the Issue
- Go to Business Configuration work center
- Select Implementation Projects view or Overview.
- Search and Open the migration activity for Service or Material
- Execute Migration for the respective Migration File
The cause for the issue is that, in the Quantity Conversion sheet, you have maintained Quantity Conversion between same UoM for Materials or Service.
For Example: 1 EA is mapped to 100 EA. This is not possible.
The system works as designed.
Change the erronous values (maintained valid conversion between two different UoMs) and simualte the migration again.
KBA , AP-RC-BCT , Business Config. Tools (SAP Business ByDesign , How To