A computational instance of a remote network management platform may be dedicated to a managed network, and the managed network may use computing resources of a cloud-based service provider. One or more server devices may be disposed within the computational instance and configured to: (i) transmit, to a client device associated with the managed network, a representation of a pane of a graphical user interface (GUI), (ii) receive, from the client device, an indication of credentials for accessing the cloud-based service provider, (iii) validate the credentials by logging on to the cloud-based service provider with the credentials, (iv) determine that the logging on was successful, and (v) transmit, to the client device, a further pane of the GUI that allows definition of a discovery schedule with which the computational instance is to discovery computing resources of the cloud-based service provider that are associated with the managed network.