While Facebook and Instagram do have a built-in way to cross-post, this only works for posts you create directly within those apps. Third-party services like Feedbird can't use that feature.
To post on both platforms, you'll need to connect each one separately to Feedbird. Also, make sure that both Facebook and Instagram are included in your subscription so you can post on both.
Need a hand?
If you have any more questions about cross-posting or anything else, feel free to reach out to our support team.