Many are familiar with seeing "add to calendar" links in emails. To add an "add to calendar" link to a Marketing Cloud email, follow the steps below.

• From your Outlook calendar, create the event or appointment* you want to share with your audience. Be sure to add all of the relevant details, like the event title, location, and any special instructions. 
  • When a recipient clicks 'Add to Calendar' the invitation will appear to originate from whoever created it. For this reason, the event planner should create the .ics file.

• Open the meeting or appointment.
• Click File in the top-left corner.
• Select Save As in the dropdown.
• Select "Save as type" = iCalendar Format (.ics)*
• Choose a location to save the file and give it a name, then click Save 

• Log in to Marketing Cloud and access the email to which you want to add the calendar link.
• Navigate to the folder (if applicable) associated with that email content, and drag and drop the .ics file from your desktop into Content Builder.
• Click Upload and Publish to upload the file.

• The .ics file will be uploaded as a Marketing Cloud document.

• Click the name of the document file to open it. A window will appear that contains a URL for the document. Click "Copy" to copy the link.

• Access your email and the content block that contains the "Add to Calendar" link. Highlight the text you want to link and click the hyperlink button.

• Paste the URL from step four above and click OK.

• Your "Add to Calendar" link is now active.