В логах написано
">Crm Exception: Message: Only owner can revoke access to the owner. CallerId: dc50df6d-b53f-de11-8f38-0050568b1637, OwnerId: 08e4a1b6-a7f3-dd11-970a-0050568b1637, ErrorCode: -2147220957
[2009-10-05 15:03:50.1] Process: w3wp |Organization:dde66944-2186-44d3-85d1-6a029ec3194c |Thread: 1 |Category: Platform |User: 742e0cca-3a6f-4d1c-b4d0-65f8fc5e4e8b |Level: Error | MessageProcessor.Execute
>MessageProcessor fail to process message 'Reschedule' for 'serviceappointment'.
[2009-10-05 15:03:50.1] Process: w3wp |Organization:dde66944-2186-44d3-85d1-6a029ec3194c |Thread: 1 |Category: Application |User: 00000000-0000-0000-0000-000000000000 |Level: Error | ErrorInformation.LogError
>MSCRM Error Report:
--------------------------------------------------------------------------------------------------------
Error: Exception has been thrown by the target of an invocation.
Error Number: 0x80040223
Error Message: Only owner can revoke access to the owner. CallerId: dc50df6d-b53f-de11-8f38-0050568b1637, OwnerId: 08e4a1b6-a7f3-dd11-970a-0050568b1637
Error Details: Only owner can revoke access to the owner."
Только не пойму что это все означает..