How to send automated daily digest email of updates

I'm trying to set up an automation to send a daily digest email of updates to users linked to an item in Smartsheet.

I have a smartsheet where each row is an event. When any cell in that row changes, I want the users involved to have some notification of the change. My current automation is triggered "when rows are changed" and accommodates for a change made to any cell for every column. When I tried to set the workflow to run "daily" instead of "when triggered," I get a "workflow timing is unavailable". Setting up the workflow to run when triggered results in an excessive number of emails sent to the users involved.