Forum Discussion
Get the ID used in a link for accessing a Booking appointment
Is there a way to get the ID used in a link to the booking appointment with Graph API?
https://outlook.office365.com/owa/calendar/[BookingCalendarAddress]/bookings/xxxxxxxxxxxxxxxxxxxxx
This ID is not the Appointment ID returned by graph API...
- MST any suggestions?
- Any Idea for the 1:N service booking? Does it have the (Base64String of the serlfserivceappointmentID)_"some more string"?Anyone decoded this ?
prathapniecs Hmm, you're right -- for 1:N services, the selfServiceAppointmentID is still a GUID/UUID, but the actual meeting URL is not returned in base64. I can't tell what it is.
Here's an example I have for a 1:N service booking:
- The SelfServiceAppointmentID (GUID) is 1400d058-9ee2-4865-8986-467f322d64e2
- The meeting URL ID is WNAAFOKeZUiJhkZ_Mi1k4unlGuHvJxVAt3btZqe9Hw81
- The base64 of that GUID is WNAAFOKeZUiJhkZ/Mi1k4g==. if we remove the last 3 characters (and also do the conversions of "/" characters and whatnot), then we get the first half of that meeting URL ID above!
I feel like that last half of the meeting URL ID can be obtained somehow, but I'm not well-versed in base64 or GUIDs or anything of that sort, so I haven't got a clue.
I'm thinking I can ask someone from MSFT about this, but in the meantime, does anyone else have an idea about this?
- Just for the sake of it i tried to do some reverse engineering and if you take the string just after the "WNAAFOKeZUiJhkZ_Mi1k4" that is "unlGuHvJxVAt3btZqe9Hw81" remove the last digit or letter and put two padding "=" at the end and you try to get the UUID you'll end up with: "b84679ba-c97b-50c5-2ddd-bb59a9ef47c3".
This works every time on every url i tried it on.
the problem is i couldn't find any way to associate the found UUID to anything reported from Microsoft Graph about the appointment.
I tried encoding the email of the booking user with UUID v3 or v5, endoding it with different namespaces (trying all the different uuid included in the appointment Graph details ) but ended up with nothing useful.
- Is this still the case?
Anyone have tips on getting appointment details by power automate or some other method? Looking for details on all appointment detailsdevelopert2lpr use GraphApi to get the details of the service, including "webUrl", which has the direct link to the service in it: Get bookingService - Microsoft Graph v1.0 | Microsoft Learn
I tried this in PHP as follows but the resulting URL was invalid.
The Self Service Appointment Id guid looks like this: "bd01de34-acd7-44c1-9dbe-d4d2b4cedfb7"
$bytes = unpack("C*", hex2bin(str_replace('-', '', $guid)));
$base64 = base64_encode(call_user_func_array("pack", array_merge(array("C*"), $bytes)));This was the output for $base64: +zBNbEGoS7iXtg41xnewEg==
The doesn't look like the URL from MS Bookings as it only has alphnumerics. What have I missed?
Thanks, Nick
Martin-Coupal , did you ever found an answer to this question? I ran into the same issue where I need this booking id so that I can get back to an existing booking on the bookings page using this id. The appointment id stored in bookings is a different one that's returned by the graph API.
Sukumar2021, no I did not find this information. I guess it should be returned by the graph.microsoft.com/beta/bookingBusinesses/ api but it is not for now....
- Found the solution. Subscriptionid field is rather converted to short id used in the link. Subscriptionid is converted to 22 char shortid using convert.tobase64string method.
