Having your Instagram account linked to a Facebook page is required to stream to Instagram with Restream.
How to link your Instagram account to your Facebook Page
Go to facebook.com and click your profile picture in the top-right corner.
Select See all profiles and switch to the Facebook Page you want to connect to Instagram.
Click your Page's profile picture and go to Settings & privacy → Settings.
In the left sidebar, under Permissions, select Linked accounts.
Choose Instagram and click Connect account.
Follow the on-screen instructions to log in to Instagram and authorize the connection.
Once completed, your Instagram account will be linked to your Facebook Page.
You can also refer to this Facebook guide.
Requirements
You must have the necessary permissions to manage the Facebook Page and connect an Instagram account.
You'll need a Professional (business or creator) Instagram account.
💡 Once your Instagram account has been linked to your Facebook page, you can connect it to Restream.