I am trying to call AutodiscoverService.GetUserSettings on an Office 365 account with the "V2015_10_05" ExchangeVersion (enum 8), which returns the error
The RequestedServerVersion header is missing or invalid.
Is this intended and documented behaviour, that GetUserSettings fails with this version string even in the newest Exchange available, while other calls (Item.Bind) work?
Try Exchange2016 instead. There haven't been any interesting schema changes in AutoD since then. AutoD is a different service than EWS and has a different set of enum values.
I am trying to call AutodiscoverService.GetUserSettings on an Office 365 account with the "V2015_10_05" ExchangeVersion (enum 8), which returns the error
The RequestedServerVersion header is missing or invalid.
Is this intended and documented behaviour, that GetUserSettings fails with this version string even in the newest Exchange available, while other calls (Item.Bind) work?