RTBlintAlpha
Billing notice URL has no ${AUCTION_PRICE}
nurl or burl is present but neither contains ${AUCTION_PRICE}, so the notice cannot report the clearing price.
What it means
A billing notice (nurl or burl) is how the exchange tells the bidder what the impression cleared at. Without ${AUCTION_PRICE} (optional :B64 or other encoding suffix) the URL fires with no price.
Why it matters
You cannot bill, reconcile, or train a bidder without the clearing price. Wins still happen; the money path is blind.
How to fix it
Put ${AUCTION_PRICE} on nurl or burl, whichever you use for billing. lurl is a loss notice and does not satisfy this.
Example that trips it
{ "nurl": "https://dsp.example/win" }Check your payload
Paste a bid request or response into the tester to see whether this code fires against it, or gate on the id in CI with the CLI: the id is stable, wording is not.
Back to the full diagnostic code reference.