CPM price calcuation in OpenRTB

[Fan Wang]

Dear AB API support team,

We're migrating to Open RTB from Google RTB, following the suggested sunset date of late 2024 provided by our TAM.

However we've encountered some confusions regarding the Bid.price attribute. The documentation indicates that it's calculated as  BidResponse.Ad.AdSlot.max_cpm_micros (Google RTB) * 1,000,000.

In light of our current practice in Google RTB, where a CPM bid of 1$ corresponds to a BidResponse.Ad.AdSlot.max_cpm_micros value of 1,000,000, it would be more intuitive and consistent to present the equivalent Bid.price attribute in OpenRTB as 1 (BidResponse.Ad.AdSlot.max_cpm_micros / 1,000,000). This approach aligns more with the sample response provided in the DAC.

Is this a typo in the documentation, which should be '/' instead of '*'? We would highly appreciate it if you could provide future clarification.

BR.

Fan

[Fan Wang]

The screenshot is attached for your reference.

[Authorized Buyers API Forum Advisor]

Hello Fan,

That's right, it seems a typo was made a while back that had gone unnoticed. Thanks for pointing this out!

So as a concrete example, a (Google RTB protocol) max_cpm_micros value of 597781 would translate to an (OpenRTB) price of 0.597781.

Regards,
Mark

ref:!00D1U01174p.!5004Q02qBNat:ref

[Fan Wang]

Thanks for the confirmation Mark.

We'll proceed following your suggestion whilst awaiting the fix of the documentation.