You need this to get it done:
Action DetailsRequirements and how-to articles for Instagram's action:
Maximum file size: 4GB
File format: Most supported, but h.264 encoding recommended with square pixels and fixed frame rate.
Maximum video length: 120 seconds
Minimum video width: 500 pixels
Video aspect ratio: 1.91:1 to 4:5 (1% tolerance)
Audio: Optional (stereo AAC audio compression at 128+ kbps)
Instagram uses the same advertising tools as Facebook, so a Facebook page is required in order to use the Ads Manager.
Choose the target audience for your ad (gender, age, location, interests, etc.)
Duration and Budget
Choose how long you want your ad to run and what your budget is.
Instagram Business Profile
An Instagram Business profile is required in order to be able to run ads on Instagram.
A short caption can be added to your ad (maximum of 90 characters.)
The link you wish to include in your ad (where you would like to send your audience to.)
Choose currency, enter payment details and pay.
The following objectives are compatible with Instagram Feed Video Ads:
Call to Action
The following calls to action are compatible with Instagram Feed Video Ads: