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?

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

Didn’t Work.

Thanks Worked

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