Is there any way to embed or have a popup from Celery linked to a button rather than redirecting outside my site?
Have you asked them to do it? Before you buy the service, they make it sound like it wouldn’t be a problem. I would “aggressively suggest” they make it happen.
If think if you choose “3 . Embed on my website” and then put the code in the header or in an HTML element on the page … it might work.
But yeah … I would ask them