Consider the following scenario:
In a Microsoft Exchange Server 2010 environment, you have an item in a mailbox that contains a subject.
You use Exchange Web Services to update the item by using the UploadItems operation together with the Update action or the UpdateOrCreate action.
The data that the UploadItems operation uses contains the subject of the item.
In this scenario, the subject is unexpectedly deleted from the item after the UploadItems operation is complete.
Note If you use the UploadItems operation again, the subject is updated successfully.
To resolve this issue, install the following update rollup:
2425179 Description of Update Rollup 2 for Exchange Server 2010 Service Pack 1
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about the UploadItems operation, visit the following Microsoft website:
General information about the UploadItems operationFor more information about the Update action or the UpdateOrCreate action, visit the following Microsoft website: