It's possible to withdraw a registration instead of permanently deleting it. This has the advantage of keeping the registration in your records instead of permanently removing it, and also to provide a reason for the withdrawal.
How to withdraw a registration
An event organizer can withdraw a registrant from the event dashboard.
Go to Event Data > Registrations and click on a registrant from the list.
Click Withdraw from the section on the right.
You can provide a reason (optional) which will be shared in the notification email sent to the registrant and visible in the registration details page for your records.
Email notification
The registrant will receive an email notification with the reason (if any was provided).
Repercussions of a Withdrawn Registration
A withdrawn registrant loses access to content accessible to participants only, for example event website pages or the live app.
A withdrawn registration is excluded from the registrant count if you set a maximum number of participants.
A withdrawn registrant will not display in the participant list on the event website.
A withdrawn registrant will be included in the mass emails if selected.
A withdrawn registrant will be included in the name tags generator.