Follow below mentioned steps in-order to connect instagram business/creator account to facebook page via instagram:

To add or change the Facebook Page that is connected to your Instagram business account:

1. Go to your Instagram profile.
2. Select Edit profile.
3. Under Public business information, Select Page.
4. Tap Create Facebook Page or Connect an existing Page.
5. Choose a Page from your Pages that you'd like to connect to or select Create a new Facebook Page.
6. Tap Done after you've selected a Page or created a new Page.

Your business account is now connected to a Facebook Page. If the Page you'd like to connect is not showing in the drop-down from your profile, it may be because you are not an admin of that Page. Check your Page's settings and make sure that you have permission to add that Page to your Instagram business profile.

Follow below mentioned steps in-order to connect instagram business/creator account to facebook page via Facebook Page:

Before you begin

1. You must be the admin of the Facebook Page.
2. You'll need the login credentials of the Instagram account.

Review and update your Instagram account connection

To review and update your Instagram account connection from your Facebook Page:

1. Open your Facebook Page.