App script to add events to a Google calendar is working, but no invitation is sent

[chocho...@gmail.com]

I have a functioning app script to add events to a Google Calendar. Calendar events are correctly created in the calendar, with guest if applicable. Logs show the guest email is being properly recorded. This is my script:

function addEventsToCalendar(e) { if (e.range.columnStart != 11 || e.range.getValue() == "" || e.range.offset(0, -10).getValue() == "") return; const rData = e.source.getActiveSheet().getRange(e.range.rowStart, 1, 1, 15).getValues(); const calendarId = 'insertcalenderid'; // Replace with your calendar ID const calendar = CalendarApp.getCalendarById(calendarId); let date2 = rData[0][1]; let request = rData[0][2];//psr or clin let loc = rData[0][3];//event location let starttime = rData[0][4]; //start time let endtime = rData[0][5]; //end time let floatName = rData[0][7]; let status = rData[0][9]; let guestEmail = rData[0][12]; var title = floatName; //event title var title2 = "Not assigned" if (date2 !== '') { var startdate1 = Utilities.formatDate(new Date(date2), SpreadsheetApp.getActive().getSpreadsheetTimeZone(), "MM/dd/yyyy"); var enddate1 = Utilities.formatDate(new Date(date2), SpreadsheetApp.getActive().getSpreadsheetTimeZone(), "MM/dd/yyyy"); var starttime1 = Utilities.formatDate(new Date(starttime), SpreadsheetApp.getActive().getSpreadsheetTimeZone(), "hh:mm a"); var endtime1 = Utilities.formatDate(new Date(endtime), SpreadsheetApp.getActive().getSpreadsheetTimeZone(), "hh:mm a"); // Log values to debug Logger.log(`Date: ${date2}, Start Time: ${starttime}, End Time: ${endtime}, Title: ${title}, Guest Email: ${guestEmail}, Status: ${status}`); // Get start date, start time, end date and end time and reformat to correct date and time format for calendar // Combine date and time for calendar event var startDatetime = new Date(`${startdate1} ${starttime1}`); var endDatetime = new Date(`${enddate1} ${endtime1}`); Logger.log(`Start Datetime: ${startDatetime}, End Datetime: ${endDatetime}`); if (rData[0][0] !== "" && status !== 'X') { let event; let eventID; // Declare eventID in the correct scope if (guestEmail !== "") { Logger.log(`Creating event with title: ${title}`); event = calendar.createEvent(title, startDatetime, endDatetime, { location: loc, color: 5, guests: guestEmail, sendInvites: true }); } else { Logger.log(`Creating event with title: ${title2}`); event = calendar.createEvent(title2, startDatetime, endDatetime, { location: loc, color: 5 }); } Logger.log(guestEmail); // Capture the event ID and remove the @google.com part eventID = event.getId().split('@')[0]; Logger.log(`Event ID: ${eventID}`); // Write the event ID to column N (14th column, since columns are 0-indexed) const currentCell = e.source.getActiveSheet().getRange(e.range.rowStart, 15); currentCell.setValue(eventID); } } }

Everything is working properly, except for no invitation is sent to the email provided. The log shows the correct email. I have tried:

hard-coding the email, using different emails, using a different personal account not in my organization to run the script, using different calendars, setting calendar permissions to full management permissions, ensuring that calendar is shown/permission is given to view all details, running the script through ai, googling the problem (including stackoverflow)

all to no avail. I was expecting an email invitation to be sent.

Does anyone have any insight as to why this script would not be sending out the invite?