First Atlas Trigger, No Output

I would like a trigger to capture Inserts & Updates to a collection. Using the Atlas UI, I have enabled one, followed the drop downs and other configs, and in the code box, only entered:

exports = function(changeEvent) {


I would obviously like to do more with it than this.

Nothing appears in either:

  • Triggers > Overview > Logs
  • Drilling into the hosted Realm app for the same triggers, under Manage > Logs

I have updated a doc using the Atlas UI and through a PHP page. Updates have been verified.

Any other setup needed? Any thing else to check or set?