We would like to be able to enter negative amounts into this window to offset payments to vendors (rather than an additional credit memo in payables). Does anyone know of a 3rd party customization to allow this? By the way, we are creating receiving's through eConnect without a PO. Thanks in advance for any insight.
Here is your product: Great Plains Dynamics SL
By design Great Plains only accepts numbers. The only time you can have a negative number is when you are doing a return.
As of Dynamics GP 2013, and the move to Perpetual Licensing, Microsoft now includes customer/vendor consolidations in the Starter Pack. Have you considered using this feature to address your root problem?