You have the option of bidding on impressions for specific Deals or Auctions using the deal ID, or sending them directly to the Open Auction.
A deal ID (for example, 3961278807007882311) is a system generated number that is assigned to a deal type upon creation, and used to identify the deal between the buyer and the publisher.
When a deal type is created, both the buyer and publisher receive a notification via email, and in the user interface. The deal ID is included in the notification, and in all bid requests that are passed as part of the deal.
You can access the deal ID at any time by clicking to open an existing deal type in the Marketplace.
Options for setting the deal ID
When bidding on an impression for a specific deal type, set the deal ID in your bid response equal to the deal ID(s) in the request. This limits your bid to that deal only, without competing in the Open Auction.
You can alternately set the deal ID to 1, or choose not to set the deal ID, to skip the deal entirely and instead compete for the impression in the Open Auction, if the inventory is still available.
The table below details the options for bidding on a deal type.
| Goal | Setting for the deal ID | Resulting behavior |
|---|---|---|
| Participate in the deal | deal_id = <deal_id> |
The bid competes only for the impression in the deal type and becomes ineligible to compete for the impression the Open Auction. |
| Skip the deal
(and attempt to compete for the impression in the Open Auction) |
or deal_id not set |
The bid skips the deal type and only competes for the impression in the Open Auction, provided the inventory is still available. |
If you bid on a deal with a CPM below the deal CPM, your bid becomes ineligible for that deal and the Open Auction. You need to respond with a deal ID to enter the auction for a bid request containing a deal ID.
Effects of CPM on auction behavior
In addition to the deal ID, the CPM also determines whether the bid response is considered for a specific deal or for the Open Auction. The table below details the scenarios where a response may not be considered for a specific deal, but may be considered for the Open Auction.
| Bid response meets or exceeds required price | ||
|---|---|---|
| Request | Response | Reason |
Negotiated fixed CPM = $4.00deal_id = 1234 |
CPM = $4.50deal_id = 1 |
Because the deal ID is set to 1, the bid response is not considered for the deal type, but is considered for the Open Auction, using a $4.50 CPM. |
Negotiated fixed CPM = $4.00deal_id = 1234 |
CPM = $4.50deal_id = 1234 |
Because the deal ID is set to the deal ID in the request, the bid response is considered for the deal type using a $4 CPM.
The buyer is no longer eligible to bid on this impression in the Open Auction. |
| Bid response below required price | ||
|---|---|---|
| Request | Response | Reason |
Negotiated fixed CPM = $4.00deal_id = 1234 |
CPM = $3.00deal_id = 1 |
Because the deal ID was set to 1, the bid response is not considered for the deal type, but is considered for the Open Auction, using a $3.00 CPM. |
Negotiated fixed CPM = $4.00deal_id = 1234 |
CPM = $3.00deal_id = 1234 |
Because the deal ID was set to the deal ID in the request, the bid response is considered for for the deal type but is filtered because it did not meet the negotiated fixed CPM.
The buyer is no longer eligible to bid on this impression in the Open Auction. |
See a brief description of the auction model to better understand how deal types work.