Hi Ryan,
Thank you for your response and here is what i am trying to achieve, maybe you can help me and guide me in details how to do it.
I have a customer that i agreed to supply them with free items (due to a past error on our part) and they would only pay for shipping fees.
so went online added to cart the items they wanted (some were free and some were paying items).
then i logged in to the admin and went to manage orders, i saw their order and i was trying to change the price on certain items to $0.00 so that the customer can continue their checkout paying only for certain items and shipping fees.
however i could not change the price, it was block and non editable.
i tried to also add a fixed amount discount and also a product discounted (both options in the admin order edit page) but the same thing happened, when i added the discount item line, it asked for the amount of the discount but that field was non editable too and i could not write anything and of course an error saying please put amount for discount in order to save order and i could not do that.
(by the way what is the difference between fixed amount discount and product discounted as far as function is concerned?)
what i did was i changed the order status to pending (no longer in shopping cart) and i manually added the shipping fees and i took their credit card by phone and added the payment for them and it went through that way.
but i want to change this in future, first i want to have evidence of their IP making the payment to help protect me if they claim to their bank that they didn't make this purchase and also its a lot easier and faster and more secure than getting their credit card by phone and its less time consuming.
please let me know what i can do to fix this.
thank you
Ben