I am using CiviCRM with WordPress 5.3.2.
I've managed to use the {contact.checksum} feature to send folks a link to edit their profile, in a one-off or bulk email.
Now, I would like to include that capability in the membership confirmation receipt. I tried including it in the "Receipt Message", but apparently html isn't allowed there. Should I try to insert it into the relevant system Workflow message?
I would also like to include it in the "Thank you footer" of the contribution (so that users can immediately edit their own data, without waiting for the email. But the link just give error ("No user/contact ID was specified, so the Profile cannot be used in edit mode.") Is there any way to do this?