Disclosed are various approaches for workflow service back end integration. In some examples, an event is detected. The event is associated with an enterprise. A workflow action to perform is identified based on event. A user account is identified using at least one of the workflow action and the event. A command to present the workflow action is transmitted to a client device. A user indication to perform the workflow action is identified. Authentication data for the network service is identified based on a single sign-on (SSO) token associated with the user account. The workflow action is automatically performed using the network service. An authentication with the network service is completed based on the authentication data.