How can I see which orders have already been assigned to a route?

On your EasyRoutes Orders page, access the Last route column (previously represented by an eye icon), which will contain a link to the route any order was most recently added to:

If an order has been added to multiple routes in the past, this column will only the display the most recent route it has been added to.

If you're not seeing the Last route column on your Orders page, access your Configure table columns settings, the two column button found to the right of the map above your orders list:

From here, enable the Last route option from the Customer & Order Details section:

You can also use the Route filter to show only stops that are already included on an existing route (or, alternatively, are not yet routed):