You can create an event directly from a text message using apps like MyTask, which uses AI to turn text into a Google Calendar event. You can also create an event from a Gmail message, which automatically adds the recipient as an invitee.
To make your invitation and reminders count, send them at the optimal times, such as well in advance of the event and 24 hours and 1 hour before the start time,
Make sure your calendar events are accessible to all participants, including those who may have accessibility needs.