I want to use a database in Google Sheets to record and acknowledge registrations for an event.
Is there a way that I can send emails only to selected members of my database e.g. those who have registered after a certain date?
How do I select which list members will be emailed ?
Once they have been emailed, can I flag them so they won't receive another one the next time?
Is there a manual other than the simple example here
Many thanks in advance