Callback Request
If you want to create the content for email Reactions like this:
Set up the Landing Page. Go to content > Global Settings

Set up the Reaction:
Choose this content template in the Email Editor:

Copy the placeholders into the email and add further details as you like:
- {{requestedDate}}
- {{requestedTimeRange.start.
hour}} - {{requestedTimeRange.end.hour}
}
Note: If the email is used in the Reaction to a debtorCallback.request, the timeRange context is injected dynamically as placeholders and it is possible to use them. Why are the specific placeholders not in the List of placeholders: When we edit an email, we can only know the generic placeholders assuming that we have the claim context but especially in reactions, we are injecting the payload of the event as additional placeholders, but because we are not binding that concrete email template to that specific reaction, it is impossible to know which other placeholders are available. That means if we want to have those in the list we would need to have that binding when creating the template.