how do I customize the emails sent to players?

There are a number of system templates that are used for sending to players.
These templates can be replaced by a self-made template. It concerns these templates:

• 'email_player_confirm'
  This template is sent when the reservation is made and contains a reservation link.
• 'email_player_has_confirmed'
  This template will be sent after the player has clicked the accept button.
• 'email_player_has_declined'
  This template will be sent after the player has clicked the reject button.

There are a number of things to keep in mind.
The name of the template must be exactly the same as mentioned in this article.
The template should be saved in the Reservation context.
The template must be saved in the correct languages.

In terms of content, all reservation and customer variables are available.
In addition, there are player variables available. A player is a derivative of customer and with that all customer variables are available but with the prefix 'PLAYER_' in front of it. Example: {FULLNAME} (customer) is also available as {PLAYER_FULLNAME}, now it is the player.

In addition, a special code is available: {PLAYER_LINK}
This contains the link to accept.