Abstract: Described herein are techniques for capturing data from devices to generate replays of sessions of a software application executed by the devices. The techniques use data obtained from the device to determine whether certain events in which a session replay is to be generated have occurred in a session of the software application. When occurrence of such an event is detected during the session of the software application, the techniques determine to trigger collection of session replay data. In this case, the session replay data may be stored and/or transmitted from the device for storage, and subsequently used to generate a session replay. If none of the events are detected, then session replay data may not be transmitted. Accordingly, the techniques can selectively allocate resources (e.g., compute, storage, and/or communication resources) for sessions in which events are detected.