Open the file 'WebserviceException.html' with your local browser.
This file is located under
Click on an error code (highlighted in blue)
This will take you into another page.
Within this page, click on 'Constant Field Values'
You should now have a list of all web service errors codes:
Please email email@example.com if you have any issues obtaining this list, or running into a web service error you need assistance with.