Write Only permission not working … | Apple Developer Forums

Hi, I am evaluating the write ony mode and on my Development iPhone (14 Max Pro / 17.2) I get an error when trying to add an event in write only access mode.

I am using the provided snippet

let store = EKEventStore()

// Request write-only access
guard try await store.requestWriteOnlyAccessToEvents() else { return }

// Create an event
let event = EKEvent(eventStore: store)
event.calendar = store.defaultCalendarForNewEvents
event.title = "WWDC23 Keynote"
event.startDate = myEventStartDate
event.endDate = myEventEndDate
event.timeZone = TimeZone(identifier: "America/Los_Angeles")
event.location = "1 Apple Park Way, Cupertino, CA, United States"
event.notes = "Kick off an exhilarating week of technology and community."

// Save the event
guard try eventStore.save(event, span: .thisEvent) else { return }

On the .save step I receive the following Error ("The calendar is read only") Failed to save event: Error Domain=EKErrorDomain Code=6 "Der Kalender ist schreibgeschützt." UserInfo={NSLocalizedDescription=Der Kalender ist schreibgeschützt.}

Changing the premission to Full Access makes the snippet work. I tested with iCloud and CalDav Accounts. Both fail.

Does anyone have similiar problems? Or a solution to this? It seems like a bug to me.

Write Only permission not working with provided snippet