Hey All!
i've been working on a project were i need to scan a barcode and if the barcode wasn't scanned i want a question appear: (why you didn't scan barcode)
i tried to put ${barcode}='' on relevant but still didn't work and nothing else is working
could anyone help
As Grzeslek2010 pointed out, you need to reference the question name (ie id), not the type, in your relevant expression. BTW, the null isnt strictly necessary; ${q1}='' should also work, as you originally had.
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