How do I add social profiles to schedule posts/tweets/updates to in RiteTag?

If you use Buffer or Sendible, you need to add social profiles (Twitter, Facebook, Pinterest, Google+, etc.) in Buffer or Sendible and then, select Buffer or Sendible as your scheduler in https://ritetag.com/customize/auto-schedule (and save.)

If you use RiteTag for scheduling, select and save Ritetag, and note that with a RiteTag Lite account, you can add one Twitter profile and one Facebook page or profile. That can be done in https://ritetag.com/customize/auto-schedule or in the sharing popup, Composer.

It's probably better to add a page, since hashtags do not get posts found in Facebook search if posted from your profile; they do, if posted from a Facebook page. Pro takes up to three Twitter profiles and three Facebook profiles/pages; Agency takes 25 Twitter/25 Facebook.