You may want to try adding the CustomerName
. In the version 2 API the CustomerName
was required for invoices even though the documentation said otherwise. I am not sure if this has been corrected in the new version 3 API.
Update and Correction: CustomerName
xml node does not exist on the v3 API for the Invoice
entity.
Also, let me highly suggest the quickbooks-ruby gem. It is rapidly becoming mature, is very active with 14 contributors, and has rich tutorials and screencasts.