Connect Google Sheets to MailNesto
New rows (and Google Form answers) become contacts — or import a whole sheet on a schedule.
Google Sheets and MailNesto, together
Plenty of lists live in Google Sheets: Google Form responses, event registrations, leads typed in by a sales team. This connection gives you a small Apps Script, already filled in with your private URL, that sends each new row to MailNesto as a contact within seconds of it being added.
If you’d rather copy a whole sheet on a timetable, you don’t need the script at all. Publish the sheet as a CSV link and set up a scheduled import that runs every hour, day or week.
What moves between Google Sheets and MailNesto
Rows typed, pasted or added by a Google Form on the first tab of the spreadsheet. The header row gives the field names; a column called email (or email_address) is required.
Headers are lower-cased with spaces turned into underscores. first_name, last_name, name and tags are recognised; other columns become contact fields.
Contacts → Import → Scheduled import reads the sheet’s “Publish to web → CSV” link every hour, day or week and updates existing contacts.
Connect Google Sheets in a few minutes
- 1
Connect in MailNesto
Go to Integrations → Connect an app → Google Sheets. Choose a list, tags and whether to require a consent column, then click Connect. The drawer shows an Apps Script with your URL already in it.
- 2
Paste the script
In your sheet open Extensions → Apps Script, replace the sample code with the script from MailNesto and save.
- 3
Run setup once
Choose the setup function and press Run, then allow access. It installs triggers for changes and form submissions and remembers which rows already exist, so old rows are not sent.
- 4
Add a row to test
Type a row with an email. Within seconds the Activity tab in MailNesto shows “1 added” or the reason it was skipped.
- 5
Or schedule a full import
In Google Sheets use File → Share → Publish to web → CSV and copy the link. In MailNesto create a scheduled import with that URL, pick a list and the schedule.
What you can do with it
A college fest in Manipal taking registrations through a Google Form can tag every row “fest-2026” and start an automation with the schedule, the venue map and a reminder the day before.
When reps add leads from a trade show to a shared sheet with a consent column, only people who said yes are added, and a three-email nurture starts on their tag.
If your operations team keeps a master customer sheet, a weekly scheduled import keeps cities and plans current for segments without anyone exporting files.
Questions about the Google Sheets integration
Which tab does the script read?
The first tab of the spreadsheet. Put the responses or list you want to send there, with the header row in row 1.
Are edits to existing rows sent?
No. The script sends rows added after the last one it sent. Add new people at the bottom rather than inserting rows in the middle.
How many rows can it send at once?
Pasted blocks are sent in batches of 100, so pasting 300 rows makes three requests.
Should I use the script or a scheduled import?
Use the script when people should hear from you within seconds, such as a welcome email after a form. Use a scheduled import when the sheet is a master list that changes in many places.