EDI data in this context is defined as a file in a VAN recognizable format. The VAN has the ability to extract required routing information such as sender and receiver mailboxes from such files. If the Use routing overrides checkbox is not checked it is assumed that the selected file is an EDI file.
If the VAN cannot recognize the file format an error message will be displayed:
Here are some valid EDI file examples which the VAN will accept without use of the overrides: