To answer the body of your post, click on "Edit Items" in the order view page and when the screen redraws you should see a link to "Cancel all items" in its place. The order status will then transition to cancelled, unless you've parted shipped items and have completed lines in which case it will transition to complete.
This is subtly different to the subject of your post which suggestions rolling back to a "created" status after an order has been approved, possibly accidentally. There is no mechanism to do that at the moment. Ray PS: This should really be posted to the user mailing list - user@ofbiz.apache.org mcdev wrote: > Hi, > may I cancel an Approved Order? If yes, what kind of operation do I perform? >