Each Social Boost post publishes with one image. You can load more than one image while you are building a post so you can compare your options, but only the image that is selected when the post publishes goes out to Facebook and Instagram. Social Boost does not publish carousel or multi-image posts.
Where your post images come from
Where your post images come from depends on your Social Boost plan.
Social Boost Services takes images from whichever source your posts were built from: your website, the photos on your Google Business Profile, or photos you shared with us. It can also generate an image with AI.
Social Boost Shopping always starts from the image on the specific product in your store catalog.
On either plan you can change the image on a post before it publishes, and any image you add has to meet the Social Boost file type, dimension, and file size limits. See Social Boost image requirements: file types, dimensions, and file size.
Loading several images and choosing one
Images you load stay available in the Social Boost post editor while the post is still scheduled, so you can swap the post image as many times as you like right up until it publishes. Treat the extra images as a shortlist rather than as extra slides in the same post: whichever image is selected when the post publishes is the one your followers see.
Can the same image be used more than once?
Not within the same series. Each image is used once per series. If you load several images, each post takes a different one, and Social Boost will not repeat the same image across two posts in the same series.
Not across series either, for now. Carrying images over from an earlier series is not available yet. When you set up your next series, add the image again if you want to use it, so keep your own copy of anything you might want later.
Why did only one of my images publish?
Publishing one image is how Social Boost works, and it is not an error. Loading four images into the Social Boost post editor does not create a four-image post, and it does not create four separate posts. One post carries one image.
Can I change the image after the post has published?
No, the image on a published Social Boost post cannot be changed. Once a post publishes, its image is fixed. If you want a different image out there, create a new post with it.
How to get several images out
To publish several images, give each image its own post. A Social Boost series holds up to 10 posts, so a single series can carry up to 10 images, one per post. Your posting cadence sets how far apart they publish. If your posts come from your store catalog, adding a post for each product image works the same way.
What is Social Boost and what's included? covers how series and cadence work.
Getting started with Social Boost for your online store covers catalog posts.