I am looking for a way to retrieve all events which do not have a specific sharedExtendedProperty with the Events.list API.
Some of my events have the sharedExtendedProperty test
and I was wondering if I can get all events which do not have this property at all. (I dont care about the value, just the key)
According to the docs you can AND and OR different properties but it sais nothing about negating them.
I tried !propertyName=test
but this did not work.
The API does not accept not
filtering, if you want to do this you have to retrieve all and filter locally.