To troubleshoot a failed integration with an external system, which steps are recommended?

• A. Restart integration service
• B. Verify credentials and endpoint only
• C. Check integration logs, verify credentials and endpoint, test API calls, review mappings, and validate event triggers
• D. Replace the external system

Answer: (C)

When an external integration fails, you need a thorough, evidence-based approach that examines every link in the chain. Start with the integration logs to surface error messages, timestamps, and where the failure occurs. Then verify that the credentials and the endpoint are correct and reachable, since authentication or connectivity issues are common culprits. Next, test API calls to the external system to confirm it responds as expected under real conditions. Review the data mappings to ensure fields and formats line up between systems, because mismatches can cause failures or incorrect data handling. Finally, validate the event triggers to ensure the automation is actually firing and the intended flow is being initiated. This combination provides concrete diagnostic evidence and helps pinpoint where the problem lies. Restarting the service or replacing the external system addresses symptoms rather than the root cause and is not part of a structured troubleshooting approach.