Change PO Line Amount using VBCS

Hi Everyone.,

We have a number of POs that need to have their line closed but they still have remaining balance. I'm trying to update the line amount to the amount received using VBCS so the line can be closed, but it's requiring me to enter this amount change as a discount.

Is it possible to change the line amount instead?

If not, what is the impact in the invoice/receipt if I add this change as a discount?

Thanks,

Jess