How do you use a number from a data variable as a page parameter?

So new to Appguyver and trying to understand why page parameters have to be text. I’ve got a list of tests that is populated via an API call to my backend. I want to pass the id as a parameter to the next page so the page knows which test to open. On the page that is being opened I have setup a parameter (tried integer text, numeric text, any text) that is supposed to receive my test id field from the data variables.

but when I try to bind the id field (number) to the parameter I get told it is incompatible.

Maybe use the formula: