Get Email Notifications for Edits in Google Spreadsheet

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Published in: Google Apps Script - Google Sheets

A client wants to receive email notifications as soon as someone edits a Google Spreadsheet that is shared with a team of people. Google Docs supports the onEdit() trigger that runs whenever an edit is made to any cell of the sheet but a limitation is that the onEdit trigger cannot send emails. Nor can be used to call external API though the URLFetch service.

As a workaround, the edits were stored as a Property and another time-based trigger would periodically send the stored value by email.

/**
 * @OnlyCurrentDoc
 */

function onEdit(e) {

    var key = "ROWCHANGES";

    var range = e.range;

    var date = Utilities.formatDate(new Date(), e.source.getSpreadsheetTimeZone(), "dd-MM-yy HH:MM:s");

    var properties = PropertiesService.getUserProperties();

    var sheet = e.source.getActiveSheet();

    var data = sheet.getRange(range.getRow(), 1, 1, sheet.getLastColumn()).getValues()[0];

    data[range.getColumn() - 1] = "<b>" + data[range.getColumn() - 1] + "</b>";

    var edits = {
        name: sheet.getSheetName(),
        data: data
    };

    var existing = JSON.parse(properties.getProperty(key)) || {};

    existing[date] = edits;

    properties.setProperty(key, JSON.stringify(existing));

}

function onEdit_Email() {

    var properties = PropertiesService.getUserProperties();

    var json = JSON.parse(properties.getProperty("ROWCHANGES"));

    var html = "":

        for (var keys in json) {

            html = html + "<br>[" + keys + "][" + json[keys].name + "] &mdash; " + json[keys].data;

        }

    if (html !== "") {

        MailApp.sendEmail(email, subject, "", {
            htmlBody: html
        });

        properties.deleteAllProperties();

    }

}
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Published in: Google Apps Script - Google Sheets

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Web Geek, Google Developer Expert
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Amit Agarwal

Amit Agarwal is a Google Developer Expert in Google Workspace and Google Apps Script. He holds an engineering degree in Computer Science (I.I.T.) and is the first professional blogger in India. He is the developer of Mail Merge for Gmail and Document Studio. Read more on Lifehacker and YourStory

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