What each booking gets

Written once at six in the morning, sent to each chat.

This is your own WhatsApp, not something I build. You still press send on each one — WhatsApp will not let a link reach twelve chats. What it saves you is writing it twelve times, slightly differently each time, before coffee.
WhatsApp · sent to 12 bookings
The same message, twelve times

Written out by the tool. Nobody typed any of it.