added admin appears buyer cart chosen client common configured corresponding data email existing information integration link listed method next notification number order orders page posted receiving reply rule sale selected seller sending settings shipping show url variable

After receiving a couple of live orders, I've noticed that the shipping method is not sent to the Common Notification URL. Is this something that can be added? We have our own admin panel that we use to fulfill orders, and this would hold us back unfortunately.

You should be able to get the shipping information from the data sent to the common notification URL. Here is a link to our FAQ page on third party integration, the data that is sent is listed under Common Order Data:
http://www.e-junkie.com/ej/help.integration.htm

Thanks for the reply, but that page is outdated. After getting another sale and sending the posted data via email, it appears the shipping method is sent via client_shipping_method_id

Yes, we have (very!) recently added the "client_shipping_method_id" variable to show which Shipping Method the buyer selected in the cart. This will show an ID number corresponding to the Rule# you'd configured for the chosen Method.

E.g. if you see client_shipping_method_id=1234, that means the buyer selected the shipping method configured in Rule#1234 in your Seller Admin > Shipping Settings > Next > Existing Shipping Rules menu.