Order numbers only for completed orders
Can you help me with my problem:
After adding product to cart, system created order number autoincrement.
It´s okay, but sometimes users do not complete their orders and order number jumps in "www.mysite.com/admin/commerce/orders" f.e. from 4 to 10.
Is here way how to set autoincrement order numbers only for completed orders?
Thanks for any response ;o)