Challenge
Sending only one notification per user on row change. The row changes more than once.
Details
When you add a new review role, only the new added person should receive a notification, not every reviewer.
It is a difficult solution because you have use an automation that uses a filtered list (a sub set of all reviewers) and you have to see that you better ignore the default coda settings because they are confusing.
Solution in 3 steps:
Automation based on row change in column reviewRoles Automation using the users in reviewUsers Automation adding notified people to column notifiedPeople via ModifyRows()
All details in my blog: