google sheets email script not runnable by all shared people - email

Question

I have a google sheet shared with other people (I'm the owner) and in it there is a button linked to a corresponding bundle script that send me an email when the user logged press that button (so if I click the button I send an email to me).
All the other people have the "edit" privileges but when they click the button an error occurs saying that it's impossible to send the mail (when I click all works perfectly).
The accounts associated to the other people has the same email domain of mine (not gmail, but related to the same company).
It seems like that the script has different privileges because I have no problem, while the other people do.
As normal, at the first time they click to the button they (but also me) had to accept the google authorization to "send email as you" (as the avatar of the current account logged).
This is the code of the button:
'''
var sheet = SpreadsheetApp.getActiveSheet();
var sel = sheet.getSelection();
var sel_range = sel.getActiveRange();
var message = sel_range.getValues();
// get task IDs
var prev_values = sel.getNextDataRange(SpreadsheetApp.Direction.PREVIOUS).getValues();
var cod_tickets = [];
for (var k in prev_values){
cod_tickets.push(prev_values[k][0]);
}
var emailAddress = SpreadsheetApp.getActive().getSheetByName('Manager').getRange('I2').getValue();
var subject = 'ticket ' + cod_tickets;
MailApp.sendEmail(emailAddress, subject, message);
'''
I say that they send an email to me, because the "emailAddress" variables will be filled with the value of the cell that contains my email address.
Any ideas?

Answer 1

Have a look at the documentation for restrictions for simple triggers:
They cannot access services that require authorization. For example, a
simple trigger cannot send an email because the Gmail service
requires authorization, but a simple trigger can translate a phrase
with the Language service, which is anonymous.
Solution:
Use an installable trigger instead.
Go to Edit->Current Project's trigger
Click on +Add trigger
Select event type On edit.
Your function should no be named onEdit, because otherwise both the simple and installable trigger would fire at once which can lead to problems.
The problem:
The installable trigger will fire for every user, but it will fire on your behalf, so the email will always be you.
If this is a problem, you will need to use a service account that will impersonate the session user, which will make things more complicated.