This document provides a guide for error processing and monitoring of SAP IDOC integration. It outlines a unified strategy for controlling error message generation, logging, resolution and monitoring across various SAP development objects. The guide describes the steps involved in interface monitoring such as analyzing errors, reprocessing eligible IDOCs, editing and reprocessing IDOCs, providing feedback to the source system, and purging unwanted IDOCs. It also recommends roles and authorizations needed to execute the outlined steps and alternative SAP standard reports that can be used. The goal is to help core development teams and interface monitoring teams effectively handle errors and ensure smooth integration.