If equation

[eiman.graiz]

Hi,
I tried to create an equation out of 3 variables. Below is the equation that I entered that is not working. can any one tell me what is the wrong?

[Mahdiyar]

if(x="Revit Material : M1", "B", if(x="Revit Material : M2", "c", if(x="Revit Material : M3", "E", "WhatYouForgot")))

[eiman.graiz]

Didn’t Work.

[eirannejad (Ehsan Iran-Nejad)]

Works in my test. Make sure the value on x is a string

[eiman.graiz]

Thanks Worked