I wanted to make everyone aware of a recent addition to our community guidelines which cautions people from sharing sheets with one another in the community. Here's the specific language that we've added to the guidelines:

Always know who you are sharing your data with. Smartsheet is not responsible


Community Members,

You can now trigger your automated Alerts & Actions up to 365 days before or after a specified date (manually specified or in a Date column).

For example, send an alert to a task’s owner three days before a deadline.

Details on this are available in Automate Your Work with Alerts