This document provides guidance on debugging the Common Information Framework (CIF) in SAP SCM-APO. It outlines CIF queue processing for both outbound and inbound data, and describes how to debug issues in outbound and inbound processing. The document also explains how to review CIF tables to analyze inbound processing and resolve issues. Debugging the CIF can help with support activities, development using CIF exits, and enhancing standard functionality. Some debugging may require BASIS, authorization or ABAP development support.