Workflow automation means letting a rule do the routine step a person keeps forgetting: move the task, tell the reviewer, send the reminder. Done well it removes chasing. Done badly it produces a board nobody trusts, because things move and nobody knows why.
Automate the handover, not the judgement
The best first rules sit at a handover: the moment work passes from one person to the next. "When a task goes to review, notify the reviewer" is a rule that will be right every time.
Leave decisions with people. A rule that guesses the priority of a new request will be wrong often enough that everybody starts checking it, and then it has saved nothing.
When, only if, then
Every sound rule has the same three parts. A trigger: when this happens. An optional condition: only if that is true. An action: then do this.
Say the rule out loud as one sentence. "When the status changes to done, only if the task is in the client group, then email the account owner." If you cannot say it in a sentence, it is two rules.
Use the clock as a trigger
Not everything starts with a change. Some of the most useful rules run on a schedule: a reminder the day before a due date, a weekly nudge on anything still waiting, a note to the owner when a date has passed.
Scheduled rules are where teams over-notify. If a reminder would fire for more than a handful of tasks, tighten the condition before you switch it on.
Check what ran
An automation you cannot inspect is a liability. Before relying on a rule, make sure you can see when it fired and what it did, and look at that record in its first week.
Give every rule an owner and review the list each quarter. Rules outlive the process they were written for.
Doing this in TaskNow
TaskNow rules read as plain sentences: when this happens, only if that is true, then do this. A rule can move a task, notify someone, send an email or call a webhook, and it can run on a schedule as well as on a change. Every run is kept, so you can see what fired and when.