Multi-Product Ads are one of the best ways to advertise on Facebook. with this ad format, you can feature up to 5 images in a single ad set. Multi-product ads also help to generate leads for your business.
Facebook is looking for new ways for advertisers to tell their story in a visual way, first with videos, now with many images per ad - as an advertiser it's incredibly exciting because it gives you the brains of your prospects I can allow them to portray a better picture before they even visit your website. Multi-product ads are available to advertisers worldwide through the Facebook Advertising API. We will be rolling out multi-product advertisements to the interfaces of our other ads later this year. By mixing a multi-product ad unit with a custom audience from your web site, you can produce various items - such as handbags, sundresses and sandals - to show in a news feed to specific audiences, ”Facebook for Business blog Said post.
Each image can represent an additional value proposition for your product or service, giving you multiple opportunities to entice and excite your target audience .

Facebook confirmed that some campaigns, using multi-product ads, saw a 42% increase for click-through rate and a 42% to 45% reduction in cost per acquisition. Since promoted posts and sponsored stories have become much more common in the average user's newsfeed, this is a great way to stand out visually as well as effectively present your audience's interests.
What Are Multi-Product Ads?
Multi-product advertisements have the ability to feature multiple products in an ad unit. Customers want to see more products. Our natural intrigue inspires us to click and play with it. Which attracts more people to your brand and engages them.
These ads contain 10 pictures and videos that customers can scroll through. Each image contains a clickable link to your landing page, a headline, and if desired, a call-to-action button. I’ve pulled an example from Facebook’s announcement, which you can see below

These ads work well to target customers who have viewed your product, placed products in their shopping cart, or purchased specific products.
You have to use the Power Editor. You will allow up to ten images at a time before multi-product advertisements as I describe. Obviously you can use them to show more products, but you can also use a succession of images to tell the story or provide more details and close-ups of your product. Having more images and links in an advertisement opens up new opportunities to talk about your business and achieve different objectives. To attract the attention of potential customers
Using the multi-product advertising example similar to point # 1 in this image, you can see how Facebook uses the information to populate product ads from different regions:

How to Set Multi-Product-Ad
You need to use a power editor to implement multi-product advertisements. Once you are in your Facebook advertising account within the Power Editor, you start clicking on the website's campaign the way you usually do. However, you can only use them for two Facebook campaign purposes: click on website and website conversion. Once you choose your purpose you canA / B start creating advertisements. Choose “multiple images in one ad” to get started.

Decide on the number of images and links that you would like your advert to contain from the ‘Images and Links’ section

Decide on your destination URL - This will be specific to each of your products and will drive your Facebook traffic to the right parts of your website.
Create your title - it will appear below your ad, remember to include the benefits of your product/service to entice the reader
Once you’ve chosen the multiple images option, you will see a template for your ad.

How Can You Make the Most of Multi-Product Ads?
Highlight more aspects of your business
Having more images and links in an advertisement opens up new opportunities to talk about your business and achieve different objectives. To get the attention of potential customers: Show more products (1-5), tell a story by adding pictures to walk customers through interesting aspects and get more detailed information. Advertisers can provide better user experience by retrieving users with a list of products they have already viewed or added to cart.
Multi-product ads will increase your conversion rates . Each image you upload will have a unique URL that allows you to run all traffic paths to your website - all from one ad.
The biggest advantage of multi-product advertisements is that you can easily create many types of advertisements for different types of products/services to face your prospects.
These multi-product ads will allow for up to five ad iterations to help advertisers boost clicks and conversions.

Product ads can display either a single product or a set of three, each of which has its own image, description, target and click figure.
According to Facebook, NomAirKoff is using multi-product ads with custom audiences and experienced a 42 percent increase in its click-through rate. The cost of the business was reduced by 42 to 45 percent per acquisition, so it not only achieved higher clickthrough rates but also saved money doing it.
By telling customers many reasons or ways to click on your ads, you can reduce the number of clicks needed to get orders from the ad, reducing buyer friction. Social advertising is not magic. This is art. This is science. And sometimes even the slightest fate does not hurt. With multi-product advertisements in our arsenal,
We are loving multi-product advertisements so far; The key metrics are good looking and as long as you take steps to be creative and innovative with your approach, you can really get some benefit from this ad unit.