Restructuring one deal ID lifted programmatic guaranteed delivery from 71% to 96%

Restructuring one deal ID lifted programmatic guaranteed delivery from 71% to 96%

A buyer kept under-delivering on a programmatic guaranteed deal despite committed budget. The fix was in the deal ID structure, not the bid.

Deal ID (a token in the bid request that flags a pre-negotiated buying arrangement and its priority tier on the supply side).

1. They inspected the deal in log-level data and saw it was configured as a Preferred Deal, not Programmatic Guaranteed.
— Preferred sits below guaranteed in the publisher's ad-server priority waterfall.
2. Direct-sold and guaranteed line items were winning the impression first; the deal only saw remnant.
3. The publisher re-tagged the deal as guaranteed (priority 12 in their ad server) and set a fixed $4.50 price.

Evidence: delivery against the 2M-impression commitment rose from 71% to 96% over the next flight, with no budget change. The bid had always cleared; it simply never reached the auction because higher-priority demand consumed the slot upstream.

Why it matters: a deal ID is a routing instruction with a priority tier attached. If you are under-delivering at a strong price, the problem is usually where the deal sits in the publisher's waterfall, not what you are paying.