To get a preview of the ads you are currently running for your store:
Go onto Facebook Ad Library (https://www.facebook.com/ads/library/)
Select the country your ads are running in in the first drop-bar menu.
In the second drop-bar menu, select “All ads”.
In the search bar, enter the name of your Facebook page and select it.
This will display the content of your ad campaigns running on Facebook and Instagram. If you click “see ad details,” you will be able to get a more detailed view and browse the different versions of the ad.
Note: The ads being shown are previews. For your auto ads, the ads shown to the viewer can consist of any of your available products - not just those coming up in your Facebook ad library preview.
Alternatively, if you would like to see what your ads look like inside Blend, you can always:
Open the Campaigns screen.
Click on the campaign that you would like to see the ad for.
Switch to the Blends tab and click on the row with the ad directly underneath.
You will see the ad preview in the right-hand corner of your screen.