In some cases you want not only to create the invoice pdf file but also an UBL. GoMeddo Subscription Management supports this via a custom setting which can be switched on to allow you to create this XML file.
The UBL is created according to the specification of http://www.datypic.com/sc/ubl21/e-ns39_Invoice.html. The file can be used to transfer the invoice data to your system of choice as it holds the invoice, account, invoice line and product information.
The UBL file is an XML file that is stored in the file section of the Invoice.
If you want to include this UBL file there is a checkbox on Account which allows you te specify that next to the invoice also this XML file has to be send to the customer.
Note that the setting to automatically create UBL invoices has to be enabled.