Hi!
Thanks for your reply.
But still cant solve my problem
My last Example:
In the last link you can see a product added to the cart, and the product have 5 item at inventory..
Then, i try change the item quantity for 2x. Yo can see it in the last ilnk:
http://prntscr.com/mv2iojFinally, when i changed the quantity, it come back to 1x. You can see it in the last link:http://prntscr.com/mv2nur
Then, i don't know how i can solve the update problem, becouse, really the item has 5 qty at the inventary, check it
http://prntscr.com/mv2p8jSorry for taking your time
Thank you.-