Downloading an invoice created by the Invoicing module
Required
Format
Comment
invoice_title
+
AN..12
Download document referenced by PAYONE payment process id (txid).
Format: RG/GT-<<txid>>-<<sequencenumber>>
e.g. RG-16324356-0 for invoices
e.g. GT-16324356-1 for credit notes
DATA
BINARY
Binary data of the PDF document
errorcode
N..6
Error number
errormessage
AN..255
Error message
