SharePoint “Unable to process Create message”

You may see this error message when you try to create a new User Profile connection: “Unable to process Create message”.

This can be caused for a number of reasons. However, in our case this was because:

1. Our servers / user accounts were installed in an Active Directory whose Netbios name was different to the Fully Qualified Domain Name.
2. The SharePoint 2010 December Cumulative Update had been applied to the farm.

This is a known issue, which Microsoft is investigating.