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When you set an organization policy on a resource, all descendants of that resource inherit the organization policy by default. If you set an organization policy on your organization resource, then those restrictions are inherited by all child resources.
You can set the same organization policy with a different configuration on child resources, which will overwrite or merge with the inherited policy based on the rules of hierarchy evaluation and the type of constraint defined in the organization policy.
Before you beginRead the Understanding constraints page to learn about what a constraint is.
Read the overview of the Organization Policy Service to learn about how organization policy works.
In the following resource hierarchy diagram, each resource sets an organization policy that enforces a legacy managed constraint and defines whether the policy inherits its parent resource's policy. The colored shapes represent the values that the organization policy allows or denies.
A constraint is a particular type of restriction that's enforced on a Google Cloud service or a list of Google Cloud services. In the preceding example, the Constraint represents the constraint default, which defines the behavior when the constraint isn't defined in an organization policy. The constraint default in this example allows all_inclusive all values. The nodes below it define organization policies that override the constraint default by allowing or denying values.
The effective policy on each node is evaluated based on the rules of inheritance. If an organization policy is not set, the resource inherits the default constraint behavior. If you set an organization policy, your policy is used instead. In the preceding example, the Organization Node defines a policy that allows square red square and circle green circle.
The resources that are in the hierarchy below the Organization Node are evaluated as follows:
Resource 1 defines a policy that sets inheritFromParent to TRUE and allows square blue diamond. The policy from the Organization Node is inherited and merged with the policy set on Resource 1. The effective policy evaluates to allow square red square, circle green circle, and square blue diamond.
Resource 2 defines a policy that sets inheritFromParent to TRUE and denies circle green circle. Deny values always take precedence during policy reconciliation. The policy from the Organization Node is inherited and merged with the policy set on Resource 2. The effective policy evaluates to allow only square red square.
Resource 3 defines a policy that sets inheritFromParent to FALSE and allows hexagon yellow hexagon. The policy from the Organization Node is not inherited, so the effective policy evaluates to only allow hexagon yellow hexagon.
Resource 4 defines a policy that sets inheritFromParent to FALSE and includes the restoreDefault value. The policy from the Organization Node is not inherited, and the default constraint behavior is used, so the effective policy evaluates to allow all_inclusive all values.
The following rules govern how an organization policy is evaluated at a given resource. You need the Organization Policy Administrator role to set organization policy.
No organization policy setIf you don't set an organization policy, then a resource inherits from its lowest ancestor with a policy set. If there is no policy set anywhere in the ancestor hierarchy, then the default behavior of the constraint is enforced.
InheritanceA resource that has an organization policy set by default supersedes any policy set by its parent resources in the hierarchy. However, if a resource has set inheritFromParent = true, then the effective Policy of the parent resource is inherited, merged, and reconciled to evaluate the resulting effective policy. For example:
projects/123.projects/456.The two policies are merged, and in this case result in an effective policy that denies both projects/123 and projects/456.
Default behavior is never merged. When a policy is set, it always replaces any default behavior. For example:
constraints/iam.allowServiceAccountCredentialLifetimeExtension is set to DENY by default at organization level.SomeServiceAccount.Since the default behavior is never merged and always replaced, this results in an effective policy which allows SomeServiceAccount. In contrast, if the policy were set explicitly to DENY at the organization level, the "DENY value takes precedence" rule would apply and the effective policy would be DENY.
If a resource has a policy that includes inheritFromParent = false, it doesn't inherit the organization policy from its parent. Instead, the resource inherits the constraint's default behavior unless you set a policy with allowed or denied values.
When a resource inherits organization policies, the inherited policies are merged and reconciled with the organization policy of the parent resource. When evaluating organization policies with list rules, DENY values always take precedence. For example:
projects/123.projects/123.The policies are merged and the DENY value takes precedence. The effective policy denies all values, and evaluates the same way whether the parent or child resource denies the value. We recommend not including a value in both the allowed and denied lists. Doing so can make it harder to understand your policies.
Organization policies with boolean rules don't merge and reconcile policies. If a policy is specified on a resource, that TRUE or FALSE value is used to determine the effective policy. For example:
A folder sets enforced: true for constraints/iam.managed.disableServiceAccountCreation.
A project underneath that folder sets enforced: false for constraints/iam.managed.disableServiceAccountCreation.
The enforced: true value set on the folder is ignored because enforced: false is defined on the project itself. The organization policy is not enforced on that project.
By invoking RestoreDefault, the organization policy uses the default behavior of the constraint for this resource. Child resources also inherit this behavior.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-10-02 UTC.
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