Forms Pro (aka Customer Voice) passing variable through external URL
I've posted this on Dynamics365 forum since Forms Pro is now Customer Voice, but have received no luck with a response and it's a fairly simple question, so I'm hoping someone on this forum can help (though it doesn't really have much to do with power automate),
I am just wondering how I can pass a variable through to an external URL (using branching) on a Forms Pro/Customer Voice form.
The scenario is that the user fills out the form like a registration form, and already the form has their client_ID (from sharepoint) that passes successfully to the form, but then I want to send it to an external URL (a checkout page to pay the registration fee) using the branching feature on the last question. When I put the variable into the URL, it takes it as text value and not the actual variable value. Anybody know how this is possible or any other way i could send this information to my woocommerce cart page:?