How to Connect Your Instagram to Facebook
Using Facebook's Web page user interface
1. On Facebook, navigate to the business' Facebook web 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 Business Manager
1. On Facebook's Business Manager, click Service Settings.
2. Click Instagram in the sidebar.
3. Click Add.
4. Enter business' Instagram qualifications. Click Next.
Optional: Link any kind of appropriate Ad accounts. If you do not wish to add one, click Skip.
5. Click Done.