To add carriers to your routing guide lanes:

1. Click "Lanes" on the left navigation bar to get to your Routing Guide. Select a lane and click "Edit Lane".

2. Choose if you would like to add a Primary Carrier or a Backup Carrier (Click +Add Primary Carrier to Routing Guide or +Add Backup Carrier)

Select a carrier in your network, or click +Add New Carrier - and enter their information. Enter the Rate for the carrier on this route, the rate type and the effective date (and expiration date if necessary).

The Click "Save Changes" in the bottom right corner to finish.