With Nuki AirBNB integration the invitation codes are automatically generated and sent to guests, which is fantastic. I think there could be a slight improvement in the text however.
Right now the automatic text says “You can redeem the invitation once within 48h”. But we keep having guests who are in no rush to redeem their codes, because they assume that they have 48 hours starting when they READ the mail, not when they received it. Although the phrase seems perfectly clear to me it seems there are quite a few people who don’t get it.
So i would suggest rephrasing it. Say the code was generated on June 10, at 15:25. It would be a lot better if the text would be "You can only redeem the codes once and you must do it no later than June 12, 15:25. If you fail to redeem them they will automatically become invalid in which case please contact us. " Or something like that. The basic idea would be that the guest sees a very exact expiration date and time to avoid confusion.
Seems silly, but it happens.