A computer-implemented method is provided. A digital calendar item is obtained for an event. It is determined that the event has begun, and in response to determining that the event has begun, a location is accessed and it is determined which of the participants are present for the event. It is determined, during the event, that one participant shared a digital data item with the other participants or as part of the event. In response to determining that the participant shared the digital data item, a reference or link to the digital data item is stored. It is determined that the event has ended, and in response to determining that the event has ended, the digital calendar item is updated by adding the reference or link.