SAP Message AJ405 - Quantity entered for operand &1 is zero

Diagnosis
You have entered a quantity of zero for the third input operand &v1&for the COMPUT19 variant in schema &v2&.

System Response
Processing was canceled because the scale determination quantity fordetermining the correct scales for franchise fee factor &v3& cannot bezero. (-> Percentage franchise fee procedure).

Procedure
Enter a quantity greater than zero in the facts for the rate, the ratecategory, or the installation.