Well, they didn't remove it, but they did make some changes. Facebook is rolling out a new, free feature called Creator Studio. It is replacing the traditional “Publishing Tools” option that was used to schedule, edit, and view past posts, draft posts, and upcoming scheduled posts.

What happened to scheduled posts on Facebook?

Beginning in late 2019, Facebook took away the ability to schedule posts directly from the page publisher. So, instead of scheduling directly from the publisher, Facebook directs you to Publishing Tools. And once you get to Publishing Tools, Facebook directs you to Creator Studio.

Why is Facebook scheduled posts not working?

An error message when trying to schedule Facebook posts typically indicates you need to reconnect your page. Occasionally, Facebook pages in Gain get disconnected due to password changes or policy changes set by the social network.