In addition to managing messages, techniques described herein relate to configuring and/or managing subscriptions for notifications associated with objects. An object can include a text document, an image, a video, or any other file or data item. In some examples, an object can be associated with the communication platform and therefore can be hosted, stored, managed, and/or otherwise owned by the communication platform. In some examples, an object can be associated with a third-party platform and can therefore be hosted, stored, managed, or otherwise owned by the third-party platform. In some examples, users of the communication platform can desire to receive notifications associated with an object. Techniques described herein enable users to generate subscriptions for receiving notifications associated with objects. That is, based at least in part on receiving an authorization indication indicating that a subscription associated with an object is authorized, the communication platform can generate a subscription and notifications associated with the object can be presented via a user interface of the subscriber. In some examples, a subscription can be associated with a user (e.g., a user profile associated therewith), a group (e.g., an organization, a workspace, etc.), a resource associated with the communication platform (e.g., a communication channel, a direct message, a board, etc.), and/or the like. In examples where an object is associated with a third-party platform, an authorization indicator can be provided to the third-party platform to facilitate the subscription. In some examples, where an object is associated with a third-party platform, a subscriber can be authenticated prior to receiving notifications associated with the subscription (if authentication is required by the third-party platform).