6.2.4 Supporting file naming convention
Any document supporting a DDEX message in a batch shall be placed into the same folder as the XML message and be named as follows: FFFF_NNNN.ext with
FFFFbeing the file name (without extension) of the file to which supporting information is provided;
NNNNbeing a serial number; and
extbeing an extension suitable to the data type (e.g.xmlfor an XML file orcsvfor a comma-separated value flat file).