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Attempting to save changes to “Allowed Logout URLs” gives an error indicating a necessity for upgrading of subscription to use acr_values_supported:
The error indicates you need a higher Auth0 subscription, likely the Enterprise plan. Contact your Auth0 account manager to upgrade and ensure you have the right permissions. acr_values_supported relates to advanced authentication settings, impacting Allowed Logout URLs. ACR values define the authentication context and are managed in the Auth0 dashboard or via the API.