If you haven’t run your year end process yet, make sure to read Mohammad Daoud’s Before Yearend Closing Check – Retained Earnings Exception Report
Mohammad R. Daoud: Before Yearend Closing Check – Retained Earnings Exception Report
Payables & ReceivablesReporting & BI
Archived post from 2012. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.