Required. The mask to control which fields to update.
This is a comma-separated list of fully qualified names of fields. Example: "user.displayName,photo".
Union parameter owner. Required. Identifies the DV360 entity that owns the 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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-27 UTC."],[],["The Display & Video 360 API v4 (beta) allows updating an inventory source group via a PATCH request to a specific URL. This request requires specifying the `inventorySourceGroupId` as a path parameter. Key actions include setting the `updateMask` and `owner` (either `partnerId` or `advertiserId`) in query parameters. The request body should contain the updated `InventorySourceGroup` instance, and a successful response will return the updated group data. The API uses OAuth 2.0 and requires specific authorization scopes.\n"]]