Chicago is asking for an enhancement to the request web service (API?), to allow requests submitted via the web to pass along a value for the "request note" field into OLE. This is already possible via the staff UI, so it should simply be a matter of making it possible via the web service as well.
It's important to note that the "request note" field is currently optional in the staff UI and should remain so both in the staff UI and via the web service. It should NOT be required.