This allows us to run ads on Instagram through the brand's Instagram profile and create new audiences. Following are the steps to link the accounts-

  1. Go to the concerned Facebook Page
  2. Click Settings in the top-right of the Page.
  3. Click Instagram Ads.
  4. To add an existing Instagram account to the Page, click Add an Account.
  5. Enter the Instagram account's Username and Password, and click Confirm.

Note: the person linking the page should have admin access to the page.