[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["わかりにくい","hardToUnderstand","thumb-down"],["情報またはサンプルコードが不正確","incorrectInformationOrSampleCode","thumb-down"],["必要な情報 / サンプルがない","missingTheInformationSamplesINeed","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-09-04 UTC。"],[[["\u003cp\u003eThe Cloud Identity Groups API uses three authorization modes: Admin authorization, Non-admin authorization, and Namespace authorization.\u003c/p\u003e\n"],["\u003cp\u003eAdmin authorization provides full access to all Google Groups in a domain, granted to users with the \u003cem\u003egroups administrator privilege\u003c/em\u003e.\u003c/p\u003e\n"],["\u003cp\u003eNon-admin authorization allows access based on domain settings, group settings, and a user's membership roles within a group.\u003c/p\u003e\n"],["\u003cp\u003eNamespace authorization, only granted by Cloud Search, gives service accounts access to identity groups from the same identity source.\u003c/p\u003e\n"],["\u003cp\u003eNon-admin authorization role permissions vary between non-members, members, managers and owners, with each one receiving progressively more permissions than the previous.\u003c/p\u003e\n"]]],[],null,["# Authentication and authorization\n================================\n\nMost Google Cloud APIs grant permissions to users, groups, or service\naccounts based on their\n[IAM roles](https://cloud.google.com/iam/docs/understanding-roles). However,\nthe Cloud Identity Groups API grants permissions based on these three\nauthorization modes:\n\n- Admin authorization\n- Non-admin authorization\n- Namespace authorization\n\nThis guide explains each of these authorization modes.\n\nAdmin authorization\n-------------------\n\nThe *Admin authorization* mode grants a user full access to all Google Groups in\na domain. Any user who has the\n[*groups administrator privilege*](https://support.google.com/a/answer/1219251)\nhas Admin authorization. Only the\n[super administrator](https://support.google.com/a/answer/2405986) for the\ndomain can grant a user the groups administrator privilege.\n\nFor more information on granting groups administrator privilege, refer to\n[Assign administrator roles to a user](https://support.google.com/a/answer/172176).\n\nNon-admin authorization\n-----------------------\n\n*Non-admin authorization* is an authorization mode for Google Groups that\ngrants non-administrator users access to Google Groups based on the domain\nsettings, group's settings and, in the case of permissions on an individual\ngroup, their [membership roles](/identity/docs/groups) in that groups.\n\nBy default, all users are able to create groups in that domain. However,\ndomain administrators can modify the domain settings for Google Groups using the\nAdmin Console. For information on modifying domain settings, refer to\n[Set Groups for Business sharing options](https://support.google.com/a/answer/167097).\n\nThe owners are able to set the permissions for each membership role for a group.\nDefault settings are as follows:\n\n- Non-members can see the group and its details when calling read-only\n `GroupsService` APIs. They can also see memberships and their details when\n calling read-only `MembershipsService` APIs.\n\n- Members have the same permissions as non-members.\n\n- Managers have all the permissions of members, plus the permission to\n manage memberships and membership roles for non-owner members.\n\n- Owners have all the permissions of managers, plus the permissions to\n modify the group's metadata, delete a group, and manage all memberships and\n membership roles.\n\nTo modify group settings,\n[Create a group and choose group settings](https://support.google.com/groups/answer/2464926).\n\nNamespace authorization\n-----------------------\n\n*Namespace authorization* is an authorization mode for identity groups that\ngrants service accounts access to identity groups synced from the same identity\nsource. Namespace authorization can only be granted by\n[Cloud Search](https://developers.google.com/cloud-search)."]]
