You can configure a group rate limit policy that applies to all the managed APIs and custom APIs in a group. The group rate limit policy controls the number of times API consumers can invoke the APIs in a group during a designated time period.
If an API in the group has an API-specific policy that is different than the group policy,
applies the API-specific policy to the API.
If all the APIs in your organization have a group policy that is different than the organizational policy,
applies the group policy to all the APIs in the group.
If you add managed APIs that use anonymous authentication to a group, the group rate limit policy applies to all users for each anonymous API in the group.
You can assign rate limit tiers to specific users. User-specific tiers determine the access policies of the user that you assign them to and override the general group tier. For more information, see
Rate limit tiers.