Every new line item needs to declare whether or not they will serve Eurpoean Union (EU) political ads. Display & Video 360 API and SDF uploads that don't provide declarations will fail. See our deprecations page for more details.
Required. The ID of the inventory source group to which the assignment will be assigned.
Query parameters
Parameters
Union parameter owner. Required. Identifies the DV360 entity that owns the parent inventory source group. It can be either a partner or an advertiser. owner can be only one of the following:
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-09 UTC."],[],["This outlines the process to create an assignment between an inventory source and a group using a POST request to `https://displayvideo.googleapis.com/v3/inventorySourceGroups/{inventorySourceGroupId}/assignedInventorySources`. The `inventorySourceGroupId` is a required path parameter. The request requires one of the query parameters, `partnerId` or `advertiserId`, to define the group owner. The request body and response body is an instance of `AssignedInventorySource`. Authorization requires the `https://www.googleapis.com/auth/display-video` scope.\n"],null,[]]
