Send Google Calendar invite from hubspot form submission

Questions
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1

:bullseye: What is your goal?

Hi, I’d like to send an invite for an existing event in my Google Calendar everytime I get a new submission from an Hubspot Form.

:thinking: What is the problem & what have you tried?

I created a first module to watch form submission from hubspot, works like a charm.
Added a google calendar “update an event” selecter advanced setting, mapped the attendees option with the email field from hubspot and selected Yes in the “Append the Attendees” option.

But I get an error when I try running the scenario

:clipboard: Error messages or input/output bundles

BundleValidationError
Validation failed for 1 parameter(s).
Array of objects expected in parameter ‘attendees’.

:camera_with_flash: Screenshots (scenario flow, module settings, errors)

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Capture d’écran 2026-02-10 à 14.59.56
Capture d’écran 2026-02-10 à 14.59.561920×1257 244 KB

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4

Hey John,

is it a single attendee? Toggle the map button next to Attendees and you will get a box where you can map a single attendee instead.

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5

No there can be several attendees !

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6

Can you show the output field you get from Huspot?
If it produces a string you will need to use spit(string; , ) and that will produce a list of emails to add.