MS Flows | How to remove last few character in MS Flows from a string

Question: How to remove last few characters from a string in MS Flows?

Answer:

substring(variables('LicenseTypes'),0,sub(length(variables('LicenseTypes')),2))

1) I took example of a string variable

2) Make sure change the variable with your values

3) Make sure you Change the number value at end, I am removing last 2

characters from the string