Click Settings from the left-hand menu (or “Professional Dashboard”).
Select Linked Accounts or Instagram.
Click Connect Account.
Log in to your Instagram account in the popup.
Allow permissions and confirm the link.
📌 Notes:
You must be an admin of the Facebook Page.
Your Instagram account must be Business or Creator type (you can switch in the Instagram app under “Settings > Account > Switch to Professional Account”).
After linking, you can post from Facebook to Instagram automatically and manage messages together.