Open Dental

What's the purpose of Pattern in the API? I receive that in the appointment details. for example:
{"AptNum":893,"PatNum":15,"AptStatus":"Scheduled","Pattern":"//////XXXXXXXXX///","Confirmed":19,"confirmed":"Unconfirmed","Op":2,"Note":""...

Is it some sort of time pattern for what work the patient will have done during that appointment?

https://www.opendental.com/OpenDentalDo ... ppointment

You are correct that the pattern is to determine what work is done when, to an extent.
The description for that column is as follows:

Time pattern, X for Dr time, / for assist time. Stored in 5 minute increments. Converted as needed to 10 or 15 minute representations for display. There's not a hard limit on this. When dragging, the max is 6.5 hours. Within the AptEdit window, it can be set to 9 hours.

I bolded the relevant part of the description above.

Thank you. That's explains. I forgot to look for it in the schema document first.