Abstract: Provided are a computer program product, system, and method to remove selected user identifiers to include in an event message based on a context of an event. A determination is made of multiple user identifiers in a group of selected user identifiers for one event name for an event message for an event to schedule. A determination is made of a context of the event to schedule. At least one of the multiple user identifiers that are not included in at least one message with an event initiator that initiated the event to schedule, having a message context matching the determined context of the event to schedule, are removed from the group of selected user identifiers to produce a modified group of selected user identifiers. An event message is generated to transmit to addresses for the modified group of selected user identifiers with information on the event to schedule.

Abstract: Provided are a method, system, and program for scheduling events based on messages produced by a message program. A message from a scheduler is scanned for terms including a schedule action specifying an event to schedule including an event time and indication of invitee names. A social media web site is scanned to determine at least one of profile information for persons represented by selected user identifiers for the invitee names and availability for the persons represented by the selected user identifiers at the event time. This scanned information is used to determine user identifiers to include or remove. The calendars for the selected user identifiers in the user database are processed to determine availability at the event time. An invitation message is generated to transmit to addresses for the selected user identifiers on behalf of the scheduler to attend the event at the event time.