**May 20, 2010 Update
My problem started with a simple change to a site column. I had originally created a Country field with the following values:
After a change in requirements, the new values for the field were:
- Great Britain
- United States
After updating the site column, I then needed to update the hundreds of items in the list to use “United States” instead of “US”. Instead of updating hundreds of items manually, I decided to write a small web services console app. (I was also not able to update it in datasheet… due to content approval maybe???)
However, I quickly ran into problems when attempting to update the multi-select choice field.