When communicating with attendees, you have to err on the side of caution. Too much communication and they'll stop paying attention or unsubscribe. Too little communication and they'll be stressed about the event. There is a delicate balance you have to strike when preparing attendees for the event and onsite at the event. So, how do you keep attendees engaged, but not annoyed?

In General, Ask Yourself...
Would this annoy me?
Is every communication impactful?
Can I make the language more succinct?
Is this necessary? As you plan out your event communication plan, be thoughtful. Take time to look at a calendar to make sure you aren't sending too many emails or notifications. Your attendees will thank you!