Can someone tell me how to convert the EWS Extended Property to Microsoft Graph Extended Property Definiton because I can't access the single value extended properties of the appointments that are created with EWS.
When i create an appointment through the Graph API i am able to access the defined property.
This is my EWS property definition:
ExtendedPropertyDefinition myPropertyDefinition = new ExtendedPropertyDefinition(DefaultExtendedPropertySet.PublicStrings, 1001, MapiPropertyType.String);
I have tried the following variants but none of them is working for me. I don't receive a single value extended properties array.
https://graph.microsoft.com/v1.0/me/calendar/events?$expand=SingleValueExtendedProperties($filter=Id eq 'String 1001')
https://graph.microsoft.com/v1.0/me/calendar/events?$expand=SingleValueExtendedProperties($filter=Id eq 'String 0x3E9')
https://graph.microsoft.com/v1.0/me/calendar/events?$expand=SingleValueExtendedProperties($filter=Id eq 'Integer 1001')
https://graph.microsoft.com/v1.0/me/calendar/events?$expand=SingleValueExtendedProperties($filter=Id eq 'Integer 0x3E9')
I searched for common problems, but none of them helped me.
Any ideas will be helpful.
Thanks.
Given your example you need to include the GUID for Public String so it should look like
https://graph.microsoft.com/v1.0/me/calendar/events?$expand=SingleValueExtendedProperties($filter=(Id eq 'Integer {00020329-0000-0000-C000-000000000046} Id 0x3E90'))
However you named property definition doesn't look correct if you for named properties using lid value the range should be 0x8000 and 0x8FFF https://learn.microsoft.com/en-us/openspecs/office_file_formats/ms-pst/60003704-dfa6-476f-b782-ce8bb52a2df3
That property range your trying to use is reserved and I'm surprised it does work if your using PublicStrings probably using a unique string as the property Id would be a better idea.