SKUs
inRiver SKUs are the units by which the ERP system keeps track of items sold. Therefore, they are variants in Litium. This article shows how to define Sku fields for default connector implementation. Projects may extend this functionality based on the merchant and ERP requirements.
Defining SKU fields
To define a sku field in inRiver model tool, create a category called LsSKU and then create a multi-valued CVL field for inRiver Item entity and set its category as LsSKU.

From the Rich client, now you can assign values to this field, and they will automatically become Litium variants when the inRiver item is added to the channel through a inRiver product parent.
You may define upto two sku fields for the inRiver item entity type by default. Project can extend the functionality to include more. The Litium variant id (article number) and Urls are generated by appending the sku value to the variant id and url. Project need to edit this behaviour if the ERP system generates different article numbers, or you may re-map the Litium variant id to ERP article number when exporting orders from Litium to ERP system.