You can create Instagram ads the same way you create Facebook ads in the ad creation section of Ads Manager.

To create an Instagram ad:

1. If you have an Instagram account, add it to your Business Manager or add it through your Page's settings. If you don't have an Instagram account, your Facebook Page may serve as the voice of your ads on Instagram.
2. Next, go to ad creation.
3. Choose an objective for your ad that supports Instagram.
4. Click Continue after you've chosen an objective. Next, fill in the details of your ad including ad targeting, budget, schedule and creative.
5. Before you place your order, make sure that there's a tick next to Instagram in the Ad preview section of ad creation. This will ensure that your ad will be eligible to run on Instagram.

* Nguồn: Facebook