I tried doing this by simply adding it to the flat rate service's description array, but then it shows up in the edit form. Can't have that! My next thought was to use hook_commerce_shipping_service_info_alter(), but I rolled it back when I realized I need to accommodate the possibility of admin/commerce/config/shipping/services being the URL used to view the flat rate services table (and not just ../services/flat-rate). Didn't have time to work it out from there.

Comments

Status:Active» Postponed

Looked at this again today. Pretty sure we'll just have to let the Shipping module add a hook to collect overview data from methods / services. This will be postponed until it gets such an update. Until then, if you need to show the rate on the overview table, you can just set it in the description manually.