Methods, systems, and computer-readable storage media for network subscription management. An example method includes receiving a request, from a collaboration network, for sub-network subscription offerings that are available for a user of the collaboration network. The user is identified in the collaboration network using a collaboration network identifier and is currently subscribed to a first subscription plan offering of a first sub-network. Compatible sub-network subscription offerings that are available for the user of the collaboration network that are compatible with the first subscription plan offering are determined and provided to the collaboration network. An indication of a selected second subscription plan offering for a second sub-network is received. Subscription service interface information for connecting to the second sub-network is determined and a connection is established to the second sub-network using the subscription service interface information.