When implementing custom check-in notifications, you will need to add two columns to your .XLSX guest list. Those columns should be titled "Custom Notification Recipients" and "Custom Notification Message". In the column titled "Custom Notification Recipients", you can add email addresses and/or phone numbers. Ensure that cells with more than one recipient are separated by commas, see below.
In the column titled "Custom Notification Message", you can add messages specific to that guest such as "Joe Doe has arrived" or "Remember to speak with Mr. Doe." This message will be sent to the recipients via SMS message or email when John Doe checks into the event.
When your .XLSX guest list is ready to be imported, go to Import A Guest List in the Manage section of your event and select upload. You can now choose your .XLSX and match your columns accordingly.
Custom notifications without custom messages:
In the case that no custom message is necessary, you can simply import your .XLSX guest list without the column titled "Custom Notification Message". This will then send only the guest's name and time of check in.