Problem: when you are creating an SMS campaign, and use the Send Test feature, a test SMS is sent to the designed mobile number. However, immediately after sending the test, the screen takes you right back to the SMS campaigns index screen. The campaign that you were working on doesn't get saved, so you have to start all over again -- which really defeats the purpose of sending a test SMS campaign.
Recommended solution: Save the SMS campaigns as DRAFT mode so that the user can go back to the campaign and continue work on it, without having to start all over again.