The Access management page is used to allow and disallow access to the services available in Nintex Live. These settings apply to all the SharePoint farms of the organization using Nintex Live.
Private services are specific services that are provided from a specific service provider to a company. Public services are services that are available to all companies.
The Always make new services from this service provider available checkbox will automatically select any new private services added by the service provider and make them available in the Catalog.
New public services are automatically selected by default when they're made available by a service provider.
When a service is allowed:
When a service is disallowed:
Note: Disallowing a service will only disable the service from making requests to Nintex Live. To remove the service (workflow action) from the workflow action toolbox, navigate to the Manage allowed actions settings page and uncheck the particular service.