Step 1 – A call for a native ad is made to Authorized Buyers. The call specifies one or both of the native ad templates.
Step 2 – Authorized Buyers sends buyers an RTB bid request containing a list of the fields being requested.
Step 3 – Interested buyers respond with the requested fields.
Step 4 – Authorized Buyers runs an auction to select the winning bid and sends the buyer’s supplied creative assets to the publisher.
Step 5 – The publisher assembles the assets into a native ad and styles it to fit the site’s design.
This question is from the How it works section of the “Get Started with Native Inventory” lesson which is a part of the Elevate Your Campaigns with Programmatic Buying course.