Exception Subprocess Design and Error Logging in Integration Suite

SAP Integration Suite allows us to develop and manage integration scenarios in a cloud environment. However, one of the most critical aspects of integration projects is error management. In practice, every integration flow must be resilient against errors. For this purpose, Exception Subprocess is used in Integration Suite. In this article, we will explore the design of Exception Subprocess and error logging methods.

Table of Contents

What is an Exception Subprocess?

An Exception Subprocess is a special subprocess in Integration Suite that is used to capture and handle errors that may occur within an integration flow (iFlow). - One or more Exception Subprocesses can be added to each iFlow. - An Exception Subprocess only executes when an error occurs. - Different scenarios can be designed depending on the error type (e.g., connection error, mapping error, script error).

How to Add an Exception Subprocess

Open the relevant iFlow in Integration Suite WebUI.
Right-click and add an Exception Subprocess.
Place the steps to be used for error handling inside the Exception Subprocess, such as: - Content Modifier (to capture error details) - Groovy Script (to format logs) - Logger (to display logs in Cloud Platform Monitoring) - Mail or HTTP (to notify relevant teams about the error).

Capturing Error Details

Within an Exception Subprocess, special variables such as CamelExceptionMessage can be used to obtain detailed error information. For example: - ${exception.message} → Error message - ${exception.stacktrace} → Stack trace information - ${header.CamelHttpResponseCode} → HTTP response code These details can be stored into Properties or Headers using a Content Modifier.

Error Logging with Groovy Script

By using Groovy Script, a more readable log format can be created.

Error Logging Methods

The logs created inside an Exception Subprocess can be managed through the following methods: - Cloud Platform Monitoring: Use the Logger step to view error details in Integration Suite Monitoring. - Mail Step: Send an automatic email to the relevant team when an error occurs. - HTTP Step: Send logs to a central log management system (Splunk, ELK, etc.). - Data Store: Save errors into Integration Suite Data Store for later review.

Tips

- Always add an Exception Subprocess to each iFlow. - Format error messages in a user-friendly way. - Set up alert mechanisms (mail, monitoring, alert) for critical errors. - Avoid unnecessary log generation and manage log levels carefully to prevent performance issues.

Conclusion

Exception Subprocess is one of the most important components that increases the reliability of SAP Integration Suite integrations. With properly designed error management, you can reach the root cause of issues faster and keep business units informed on time. Therefore, Exception Subprocess design should never be overlooked in any Integration Suite integration project.

Rıdvan Çakır

SAP PI/PO Consultant