API Graph - Property Locations/UniqueId lost after several hours

YH-5466 41 Reputation points

I created reservations from my Outlook web calendar by adding resources.
I also created reservations using the Graph APIs (Locations property (UniqueId = email address and DisplayName = email address).

When I retrieve my events using the Graph APIs, the UniqueId property of Locations is populated on the created reservations.
But after several hours, this property is empty.

When I retrieve the events, with Graph APIs, from the calendar of the resource, I have a value for UniqueId.

Are there a cache ?

Microsoft Graph
Microsoft Graph
A Microsoft programmability model that exposes REST APIs and client libraries to access data on Microsoft 365 services.
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