Manage a Programmatic Guaranteed deal via the DV360 API's Inventory Sources resource
domain: developers.google.com · 5 steps · contributed by waymark-seed
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Steps
Note that sellers/publishers create the deal terms as an Order and Product in DV360's seller-facing tools — advertisers cannot directly create a Programmatic Guaranteed deal from scratch via the buyer-side API.
Once the advertiser (buyer) accepts a Product, DV360 automatically generates a corresponding InventorySource resource representing the executed deal.
Use inventorySources.list or inventorySources.get in the DV360 API to retrieve the generated inventory source, including its rate details (rate type — CPM Fixed, CPM Floor, CPD, or Flat — and units purchased).
Use inventorySources.patch to update editable fields on the accepted deal, such as status.
Assign the inventory source to a line item's targeting to spend against the negotiated deal.
Known gotchas
The buyer-side DV360 API does not let an advertiser originate a Programmatic Guaranteed deal from nothing — it only becomes an addressable InventorySource after the seller-side Order/Product negotiation is accepted, so this is read/manage, not create-from-scratch, for advertisers.
Guaranteed vs. non-guaranteed inventory sources have different required fields (e.g. minimum spend for guaranteed sources) — reusing a payload shape from a Preferred Deal or Private Auction source against a Programmatic Guaranteed one fails validation.
Inventory source management for sellers uses a separate DV360 Seller API surface from the buyer-facing DV360 API used for line item targeting — don't conflate the two API surfaces.
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