There are various methods available for adding image URLs into Blueprints for Display ads.
Single image URLs
You can use single image URLs if you are wanting to advertise using the same image across multiple accounts. Simply paste the image URL into the Image URL field in your Blueprint creative. Ensure the URL is publicly accessible for Fluency to retrieve the image.
Blueprint tags
To provide several image URLs to your campaigns, use a Blueprint tag. Create a custom Blueprint tag with your image URLs listed on separate lines. Then, copy and paste the tag into the Image URL field in your Blueprint creative. See the [media-example] Blueprint tag in the example below.
Inventory feed
Using an inventory feed is a simple way to keep your images up to date.
In an inventory feed data source, create a column with a tag name (e.g., image).
Input each image URL into a separate row in the newly created column. When you add this data source to Fluency, it will automatically create the Blueprint tag [image].
Copy and paste this tag into the Image URL field in a Blueprint.