Instagram Link with Facebook
Using Facebook's Page user interface
1. On Facebook, navigate to business' Facebook page.
2. Click Settings.
3. Click Instagram in the sidebar.
4. Click Visit.
5. Enter your Instagram credentials. Click Visit.
Using Facebook's Business Manager
1. On Facebook's Business Manager, click Company Setups.
2. Click Instagram in the sidebar.
3. Click Include.
4. Go into the business' Instagram qualifications. Click Next.
Optional: Attach any kind of appropriate Ad accounts. If you do not desire to add one, click Skip.
5. Click Done.