Create a trigger that would not send email.
This would probably save the most time from all suggestions.
So for example, if a guest has not paid in full, I do not want to send the email with the key code.
For now, I have to check every booking manually and then delete the email and then send it again when the guest paid it.
So having a 2 triggers in one would make this so much easier.
I have seen this idea on Zeevou and it works like magic to save time and make sure guests don't get info on how to get to the property if they haven't paid.

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AdminThien (Admin, Hostfully) commented
Hi Donatas.
Thank you for your message,
Your idea is how our integration is working now. When you integrate with RemoteLock, it won't create a Pincode unless the booking is paid in full.