Identity and Access Management(IAM)の許可ポリシーの変更は深刻な影響を伴うことがあります。特に、アクティブなユーザーまたはサービス アカウントのアクセス権を取り消す場合は、こうした影響が生じる可能性があります。このリスクのため、許可ポリシーの変更をする前にテストを行い、業務への支障が生じないことを確認することをおすすめします。
[[["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 2025-08-23 UTC。"],[[["\u003cp\u003eModifying IAM allow policies carries the risk of disrupting active users or service accounts.\u003c/p\u003e\n"],["\u003cp\u003ePolicy Simulator enables testing of allow policy changes to anticipate their impact before implementation.\u003c/p\u003e\n"],["\u003cp\u003eTesting policy changes helps prevent unintended access loss for users.\u003c/p\u003e\n"],["\u003cp\u003eThe Policy Simulator overview documentation provides more information about this tool.\u003c/p\u003e\n"]]],[],null,["# Test changes to allow policies\n\nChanging an Identity and Access Management (IAM) allow policy can be disruptive,\nespecially if you're revoking access for an active user or service account.\nBecause of this risk, you might want to test allow policy changes before making\nthem to confirm that they won't disrupt anyone's work.\n\nYou can use Policy Simulator to see how a change to an allow policy might impact\na principal's access before you commit to making the change. Testing these\nchanges helps ensure that the changes you're making won't cause a principal to\nlose access that they need.\n\nTo learn more about Policy Simulator, see the [Policy Simulator\noverview](/policy-intelligence/docs/iam-simulator-overview) in the Policy Intelligence documentation."]]