[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["難以理解","hardToUnderstand","thumb-down"],["資訊或程式碼範例有誤","incorrectInformationOrSampleCode","thumb-down"],["缺少我需要的資訊/範例","missingTheInformationSamplesINeed","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-09-03 (世界標準時間)。"],[[["\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."]]