Attachments: Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.
GoSystem RS has a web service that allows clients to submit returns without going through the browser application, but not sure if this functionality exists for ONESOURCE.
Can the API be used to derive the tax rate (for a customer/location) instead calculating the tax amount?
Security Header update
Trying to call the Taxcalculation API from Tibco Getting Authentication Error.
Incorrect endpoint in wsdl for address validation
What is the correct xml to reverse a transaction?