i Need to notify and send an email to the patient before his/her patient appointment within 1 day or even one week
is it possiple ?
i know its written in the documentation that the reminder in the patient appointment will send an email to remind patient befor his/her appointment
but because of the healthcare is still under developing
so i am trying to use the EMAIL alret to track the date of the appointment and send email 1 or 6 day before the appointment
The (-3 ) is not accepted there
and I can’t figure out a way to subtract the date within the condition field
we could have used add_days() but its not working here either