Australian Goods and Service Tax (GST) Business Activity Statement (BAS) XML File fails to import into the Electronic Commerce Interface (ECI)

This is a reposting of an article I originally wrote on my Developing for Dynamics GP blog.
Today I am going to discuss a support case where we found an issue with the XML file created when exporting the Business Activity Statement (BAS) tax return report for Australian Goods and Services Tax (GST).
