Question:

How to display a custom field as a column on the inventory order line section of the inventory order object?

Answer:

To display custom fields on the Inventory Order page, do the following:

1. Create a new field on the Inventory_Order_Line_vod__c object in the following format: zvod_Product_[FieldName]. The [FieldName] must be an exact literal match to a corresponding field of the same type on the Product object.
2. Add the new field to the first section of the Inventory Order Line page layout.
3. Set the field to Read only.

Related Documentation:

CRM Help Documentation:  Inventory Ordering