I want to modify the price of the order, but I was unable to change that if the order status is either "Shopping cart" or "Checkout".
What I did is changed the order status to "Pending", then the price can be modify. After modifying the price, I changed back the order status to "Shopping cart", then the price becomes disabled again.
When I check my cart, the price is same as with the original price, so I looked at the order again and find out that the price has been changed back into its original price.
Why is this happening? I'm not familiar yet with commerce.