How to make trigger run auto send email twice a day even do not open spreedsheet

This script is for sending email onsheet "Emai" Col A what email to send to Col B subject Col C message

CodePudding user response：

To set up a function to run automatically on trigger

• Open the Apps Script editor
• Select from the dropdown menu the function that installs the trigger:

• Click on Run

The function to install the trigger needs to be run only once. After the trigger is created, the function sendEmails will be run automatically in the background at the time specified within the