Hello @Helen3 ,
thank you, that's a great idea to make it part of the booking conditions!
If guests haven't read my message, I text them. I used to ask guests about their check in time when they booked my acommodation but most of them did not know the time yet. So I thought it would be better to ask them a few days before their arrival when they have finalized their plans.
Self check in is a little bit difficult because I haven't found a good spot for a key box yet...
Right now I have a guest who is going to arrive tomorrow. I've asked him to let me know his check in time and I can see that he has read my message. He hasn't answered yet...
Regards
Alex