Article about the extension - http://post2go.ru/blog/joomla-joomshopping

Extension do following:

• adds "track" button into every order line in user's order list. By pushing it user opens window with list of parcel delivery service statuses.
• in admin interface at order list page every order line was added special input field for tracking number
• at extension page it could be configured to behave appropriate in case order have/don't have tracking number etc.

Supported delivery services: http://post2go.ru/courier.

Sometimes track number you provide for user's order could match several delivery services and widget would offer users to select which service to use? In order to eliminate this you can configure widget to only use limited number of services you need (http://post2go.ru/b2b/widget) or define necessary service in widget code (you use it to put widget at the web page). All the necessary settings you can do by using widget constructor http://post2go.ru/b2b/widget.