A message is considered to be a collection of information from an uniquely identifiable visitor to the event organiser. The goal is for the corganiser to be able to request certain information from its visitors. Which information should be requested can be defined by enabling and disabling the individual form fields of the frontend form. Therefore the informational content of a message is diverging.
Possible messages could be:

• Message with two possible response options (Subscription/Unsubscription); e.g. to determine who will be present and who will not.
• Message with a note field; e.g. to coordinate who brings which dessert.
• Message with contact details (phone, e-mail); e.g. to ensure subsequent contact tracing.
• Message with details of accompanying people (number of people); e.g. to determine the number of visitors.
• etc...

An event is considered to be an activity or an occasion that can be unmistakably identified by means of an event category, an event title and an event date. With the help of an event, the visitors and their messages should be organised geographically and chronologically, in order to be able to present the requested information to the organiser in useful attendance lists.

Proposals of suitable event sources:

• AttendanceLists Eventmodule (Preformatted event box according to the demo page)
• Own HTML module (Custom module from the Joomla core)
• Joomla article (article must be placed on the same page as the form)
• DPCalendar module (module "Next events" of the component DPCalendar)
• Any "Calendar & Events" component for Joomla

Take a look at the video tutorial "Quick Installation Guide" on the official youtube channel of this component. The tutorial explaines the procedure step-by-step from installation to the first message submission using the frontend form.

Video Tutorial:

Event categories are used to further structure events and their related messages. In addition, the attendance list view lists all messages of all events of a certain event category. Therefore, event categories can be used to create structures that allow certain users to view only attendance lists with messages of a certain event category.

If this error message appears, the current user does not have the necessary permission to perform the desired action or to view the desired view.
Check the component permissions under System-Global Configuration-AttendanceLists-Permissions.

• Form view
  For the form to work correctly, for example, Web page visitors (Public) must have the permission to create content.
• Attendance list view
  In order to display this view, the visitor must have the authorisation "Access Attendance list".
• Administration view
  In order to display this view, the visitor must have the authorisation "Access Administration Interface".

If this warning appears, the event was not correctly detected by the component. Make sure that

1. there is an event on the same web page.
2. the date und the title of this event is in a separate span element with a unique ID.
3. the ID of the span elements matches with the menu setting.

If this error message appears, there is probably a JavaScript error (you can check that in the console of your browser).

A possible reason is an impossible setting in the corresponding menu setting. This could happened e.g. because of an unsuccessful downgrade from the PRO to the FREE version.

To solve the problem delete the corresponding menu item and recreate it again.

In the case of a content encoding error, the server delivers content that cannot be interpreted by the browser. This can happen if optimisation plugins such as JCH or GZIP compression are active. Certain parts of the website may then be sent incorrectly by the server.

The solution is to deactivate GZIP in the Joomla server settings or to deactivate the active optimisation plugins.