The GP Support team gets rolling with Microsoft Dynamics GP Year End Release 2013: Payables Management Year End Close .
Microsoft Dynamics GP Year End Release 2013: Payables Management Year End Close – Dynamics GP Support and Services
Year-End & 1099General Ledger & FinancialsPayables & Receivables
Archived post from 2013. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.