QAD 2017 Enterprise Edition > User Guides > EDI eCommerce > Setting Up EDI eCommerce > Defining EC Subsystem Cross-References
  
Defining EC Subsystem Cross-References
You can either documents into the database or bring them in from an external source for transformation and export in a new format. Use one of the following methods to set up cross-reference records between eCommerce and an EC subsystem:
When you load records into the exchange repository, then through transformation, into the document repository, and through a gateway into the database, set up cross-reference records using EC Subsystem/Exchange Maintenance (35.13.3).
When you load records directly into the document repository, you can transform files for export without ever creating business documents in the database. Set up cross-reference records for this type of processing using EC Subsystem/Application Maintenance (35.13.5).
See EDI eCommerce Processing.