If you want to create Instagram ads in Power Editor or Ads Manager without connecting your Instagram account to Business Manager, add your Instagram account to the Facebook page that you are an admin or an editor of. To add your Instagram account to your Facebook page, you must follow the three steps listed below.
Step 1: Go to settings
First, you must go to settings, a tab located on the upper-right corner of your screen.
Step 2: Click “Instagram Ads.”
From the left column, click “Instagram Ads.”
Step 3: Add your Instagram account
Click “Add an Account.”
Step 4: Add an existing account
If you already have an existing, active Instagram account, choose the first option then enter your Instagram username and password. If you don’t already have an existing Instagram account, choose the second option to create an account.
Step 5: You’re done!
Your saved Instagram account should appear on the Instagram Ads page. You can remove or replace your account at any time.