Hi Ana,
I believe you should have an Events
table and a Form Submissions
table of some sort?
If so, I would create a link between the two tables so that each Form Submission
was linked to the right event. You could accomplish this link by adding a linked field to the form and allowing your users to select the event, or via an automation


From there, I’d create a lookup field in the Events
table to get all the emails for that event, and I would finally have an automation which has a trigger “when record updated” that would watch the Email (from Form Submissions)
field, and its action would be to update an Outlook Calendar Event, specifically the Attendees
field with the list of emails like so:

