The following arguments can be appended to a URL where 1000 is the interest's ID.
  • To add the Interest (specified by ID) to the logged in constituent's record:
    &AddInterest=1000
  • To removes the Interest (specified by ID) to the logged in constituent's record:
    &RemoveInterest=1000
For Example:
https://yourdomain.org/site/PageServer?pagename=testpage&AddInterest=1000