Examples of a method and system for collaborative and private sessions are provided. A request from a user of a collaborative shopping session is received. The user is associated with a private shopping session that allows access to an item at a special price, the special price being unavailable to non-participants of the private shopping session. Criterion is designated for the private session, the criterion indicating a completion of the private shopping session. User interactions received from a device of the user are processed. Satisfaction of the criterion is determined as a result of the processing. The private shopping session for the user is concluded based on the determination.