If you would like to edit your description, click on the Edit Description button above your listing preview. Make your changes and click on Back to Launcher.
You may choose to immediately launch your listing instead of keeping it as scheduled by selecting the List immediately radio button instead, or pick a new date and time (since your original will now be in the past).
Click on Estimate Fees and review your changes.
Click on the Schedule or Launch Now button (depending on whether you chose to reschedule the listing or launch it immediately).
If you change your mind about making corrections, click on the Cancel button.