The users of my website will be booking in appointments on a very frequent basis so I'm looking for a way to have the site remember them --- I also need to collect some custom data from them that will be fed through in any confirmation emails.
Originally I planned to set this up by having them login to my site, however it seems like registration/login has to be done through wordpress/facebook/twitter etc and that I have no control over setting up fields to collect custom data... Is this correct? (Note* The custom data shouldn't change, i only need to collect it once).
The other way I thought to do this is to collect the data via custom fields in the form that appears once they've chosen a calendar spot. (If you go to my site, you'll see I've already set up these custom fields). I'm not sure how to get the website to remember the user though... ie. next time they come to the site, would that data still be in those same fields?
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