Lastly, you need to link the Instagram account to the Facebook account through the Accounts Center inside the Instagram app.
- Tap on the 3 stripes in the upper right corner
- Tap on the Accounts Center
- Tap on the Accounts

- Tap on the Add accounts
- Tap on the Add Facebook account
- Tap on the Continue button
(or Not you? if the authorized account is not the one you’ve created a page on the previous steps)

- If you choose Not you?
- If you choose Use different account then tap on the Continue button
- Fill in your Facebook credentials and tap on the Log in button

- If the previously entered data was correct tap on the Continue as Username button
- On the new screen, you should see both of your connected accounts: Instagram and Facebook. Tap on the Continue button