Note: Make sure you are logged in and in the correct event
Go to fields template
Click on the pencil next to the custom field you want to change.
You can both change the question and the answers here.
Note! You can only change a custom field if it has not been used for participants yet.
Click on save. If this field is used in the registration form and none of the participants has filled in this field yet, the field will be automatically updated with the new answers.
Note! If this field is used as a dependency field in products or activities and you changed/removed the dependency field answer, you need to save the product or activity again.