Hello @ADHJason ,
Due to how some social platforms work, tagging usernames with spaces doesn't generally work. Typically the most standout of these is Facebook which doesn't have a traditional @ tagging system like Twitter handles or Instagram account tags, which are all singular, no-space words, numbers, and symbols. This, combined with how their API works with a lot of 3rd party social posting services like ours, means that for tagging on Facebook you'll likely need to go in and manually add it each time after the post is made.
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