Let's say I have 3 items on an order or invoice. I want to enter another line item that specifies a discount or cut off each line item, let's say 5% off.
I want to be able to auto update the amounts on the 3 items to take the 5% off when there is this line item present.
I was thinking I can do this when the user presses Save but I can't seem to access that underlying code or logic.
Has anyone experienced this? What would be the best way to do this?
Thanks, appreciate it.
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