Function onOpen not activating when i open my forms

Question

My function onOpen is not activating itself when i reload/open my quetionaire.

function onOpen() {

  this.ClearForm();
  this.UpdateForm();

}

Answer 1

Try this to be sure:

function onOpen() {
  Logger.log(new Date());
  this.ClearForm();
  this.UpdateForm();
}

The check logs. If ClearForm or Update form require permission then they can't be run by simple triggers. Try installable trigger instead.

Simple Trigger Restrictions