API Log Design: Facilitating Rapid SMS Issue Diagnosis

Logs: The Foundation for SMS Troubleshooting and Reconciliation


A robust logging system significantly reduces the time required to diagnose issues and minimizes losses caused by service disruptions.

Log Field Specifications


  • Capture request timestamps, `messageID`, destination country codes, submission status, and delivery receipt results.

  • Sensitive information, such as mobile phone numbers, must be masked to ensure compliance with data privacy regulations.


  • Log Retention Requirements


  • Logs must be retained for both successful requests and error cases; do not log only error information.

  • The retention period must align with the timeframes required for business reconciliation and retrospective troubleshooting.


  • Log Usage Best Practices


  • Use structured log formats to facilitate the retrieval and filtering of key information.

  • Distinguish between business system logs, API request logs, and callback/delivery receipt logs.

  • Use the `messageID` to reconstruct the full end-to-end lifecycle of the SMS message.


A comprehensive logging system drastically shortens fault diagnosis time, boosts the troubleshooting efficiency of technical teams, and mitigates the impact of service disruptions.