Arcade custom popup IIf error

[BrandonCales]

I'm trying to create a custom popup that will evaluate attributes and output a separate graphic for each. I started with a simple IIf statement to output text but get an error.

My attribute use a domain with Codes 'Yes', 'No'.

IIf($feature.BASEBALL = 'Yes','x','y')

It returns: Execution Error:Feature is Immutable

[MichaelBerzinis · Accepted solution]

Try == for equals.