We would like to add an Outlook calendar invite to an email sequence so that clients/prospects could download the event we are marketing to their calendars.

I talked to the customer service line and they said we could add a button to the email. However, the only options on the button are a link and a file. The file option could work for what we're trying to accomplish, if an .ics file (outlook calendar invite) was an approved file type.

Creating the .ics itself is quite a challenge with the new Outlook. I had to switch to the old outlook to be able to forward the event as an .ics file to myself, then download the file to try and upload. Only to see it is not an approved file type.

When the registration confirmation for an event is sent out, it should include an 'add to calendar' option.

Add to calendar option on event confirmation emails