Collins Computing looks at Hidden Features in Microsoft Dynamics GP 2013 , specifically improvements to the encumbrance notification to warn users if the receipt item cost is different than the originally encumbered amount.
GP 2013 Encumbrance Notification Enhancements
Off-Topic & MiscellaneousGP 2013
Archived post from 2014. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.