Not what was implemented here https://renxt.ideas.aha.io/ideas/RENXT-I-55.

Specifically to add email notifications or text messages so that solicitors or relationship managers can be reminded of upcoming datelines for stewardship and meetings. These would also be useful for staff in the organization that do not use RE extensively or even at all.

The "Add to calendar" integration does not help as the EA's or database administrators are usually adding it. This would be useful in addition to the email notification(in the email notification itself), rather than as an actually solution.