The following tags can be used to add content dynamically:

• [from_name] - Attendee name
• [from_email] - Attendee Email
• [meta_data] - All custom form fields in list format
• [registration_id] - Registration ID
• [user_id] - User ID of attendee
• [event_id] - Event ID
• [event_title] - Event Title
• [event_dashboard_url] - URL to the frontend event dashboard page
• [event_url] - URL to the current event
• [organizer_name] - Name of the organizer which submitted the event listing
• [organizer_email] - Email of the organizer which submitted the event listing
• [date_of_participation] - Date of attendee checkin
• [event_post_meta] - Some meta data from the event. e.g. [event_post_meta key="_event_location"]
• [NATO_Rank] - Custom field named "NATO Rank"
• [Name] - Custom field named "Name"
• [Surname] - Custom field named "Surname"
• [Gender] - Custom field named "Gender"
• [Nationality] - Custom field named "Nationality"
• [Date_of_birth] - Custom field named "Date of birth"
• [Place_of_Birth] - Custom field named "Place of Birth"
• [Passport/ID_Number] - Custom field named "Passport/ID Number"
• [Passport/ID_Expiry_Date] - Custom field named "Passport/ID Expiry Date"
• [Position] - Custom field named "Position"
• [Unit] - Custom field named "Unit"
• [Arrival_date] - Custom field named "Arrival date"
• [Arrival_time] - Custom field named "Arrival time"
• [Departure_date] - Custom field named "Departure date"
• [Departure_time] - Custom field named "Departure time"
• [Food_restrictions] - Custom field named "Food restrictions"
• [Phone_number] - Custom field named "Phone number"
• [Personal_identification] - Custom field named "Personal identification"
• [Sending_organization] - Custom field named "Sending organization"
• [Means_of_transportation] - Custom field named "Means of transportation"
• [Transport_details] - Custom field named "Transport details"
• [Unit’s_address] - Custom field named "Unit’s address"
• [Unit’s_contacts] - Custom field named "Unit’s contacts"
• [Location_of_arrival_&_departure] - Custom field named "Location of arrival & departure"
• [Request_for_transfer] - Custom field named "Request for transfer"
• [Request_for_accommodation] - Custom field named "Request for accommodation"
• [Request_for_meals] - Custom field named "Request for meals"
• [Prerequisite_certificates] - Custom field named "Prerequisite certificates"
• [Approver’s_name] - Custom field named "Approver’s name"
• [Approver’s_position] - Custom field named "Approver’s position"
• [Approver’s_contacts] - Custom field named "Approver’s contacts"
• [Passport_Number] - Custom field named "Passport Number"
• [Your_arrival_time] - Custom field named "Your arrival time"
• [Airport_and_Flight_Number] - Custom field named "Airport and Flight Number"
• [Accomodation] - Custom field named "Accomodation"
• [Accommodation_details] - Custom field named "Accommodation details"
• [Accomodation_if_chosen_by_you] - Custom field named "Accomodation if chosen by you"
• [Are_you_registering_for/as] - Custom field named "Are you registering for/as"
• [Do_you_need_any_Winter_Equipment?] - Custom field named "Do you need any Winter Equipment?"
• [If_you_are_a_Lecturer,_write_your_topic_below] - Custom field named "If you are a Lecturer, write your topic below"
• [Participation_mode] - Custom field named "Participation mode"

All tags can be passed a prefix and a suffix which is only output when the value is set e.g. [event_title prefix="Event Title: " suffix="."]