Link Instagram with Facebook
Using Facebook's Page interface
1. On Facebook, navigate to the business' Facebook page.
2. Click Settings.
3. Click Instagram in the sidebar.
4. Click Log in.
5. Enter your Instagram credentials. Click Visit.
Making use of Facebook's Manager
1. On Facebook's Business Manager, click Business Settings.
2. Click Instagram in the sidebar.
3. Click Add.
4. Go into business' Instagram credentials. Click Next.
Optional: Attach any kind of relevant Advertisement accounts. If you do not desire to include one, click Miss.
5. Click Done.