We would like to include more booking-specific details in the email sent after check-in — specifically the Mews Booking Number. This is important because guests need this number to generate a new key at the kiosk if they lose their original one. However, I can’t find where to access existing fields containing data from the booking? Where is it hidden 
Hello,
You should be able to include {confirmationNumber} in the After Check-In template.
You can see the full list of available placeholders for each template here:
https://help.mews.com/s/article/placeholders-bookable-services-mail-templates?language=en_US#after-start
Thanks! This is just what I was looking for 
