Action Details
Requirements and how-to articles for Facebook's action:

paid action
Create a collection ad to appear in users' News Feeds. Collection ads are useful if you have a catalogue of products to sell.

Requirements
You need this to get it done:

Template
Choose a template for your collection.
Headline
A short headline to grab the audience's attention and briefly explain what your ad is about (25 characters recommended.)
Text
A short description to accompany your image (90 characters recommended.)
URL
The link you wish to include in your post (where you would like to send your audience to.)
Cover Image
Collections require either a cover image or a cover video (but not both.) The cover image/photo is the highlight of the post and is what draws in the viewer's attention before looking at the products listed below it.
Cover Video
Collections require either a cover image or a cover video (but not both.) The cover image/photo is the highlight of the post and is what draws in the viewer's attention before looking at the products listed below it.
Product Images
Images of the products that you wish to advertise in your post (minimum of four.)
Duration and Budget
Choose how long you want your ad to run and what your daily budget is.
Payment
Choose currency, enter payment details and pay.
Requirements missing or found errors? Report

How-To Articles
A list of useful links for you:

0
Facebook Ads Guide - Collection (Facebook feed)
Specifications and requirements.
Official
0
Facebook Ads Help Centre - Create a collection ad
Step-by-step guide on how to create a collection ad.
Official
0
Facebook Collection Ads
Information about collection ads - when and how to use them.
Official
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