Ep 2: Bidder adapters and your Prebid build

You added a new bidder, and it never bid once. Here’s why.

A bidder adapter is a plug-in that lets Prebid.js talk to one SSP.

Prebid lists more than three hundred demand partners, but your site loads only the adapters someone picked, packed into one file called your build. Say recipes.example signs a sixth SSP. Ops adds it to the page setup. But the build still holds the old five adapters. So Prebid can’t find bidder six and logs an error only visible in the browser console. No bids, no revenue line, no alert. Builds also age. Prebid only supports its newest major version, eleven, from March twenty twenty-six, and suggests upgrading at least every six months.

Today, ask for your Prebid version and adapter list. Match it to every bidder contract.

Next, price granularity, the buckets that decide what you’re paid.