Q. How do I format my discussion post in APA?

Like papers, discussion posts also generally require citations. Unlike formal papers, you would not include a title page or running head. In addition, Canvas does not allow you to use hanging indents in discussion posts. You should still use APA style for grammar and language, as well as in-line citations and references.

This page from Rasmussen College provides some examples of using APA style in discussion posts.