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Troubleshooting Common OTP SMS API Issues

admin
Updated on 15/04/2025

< 1 min read

Encountering hiccups with the SMSGatewayCenter OTP SMS API? Don’t worry! This guide tackles common issues and offers solutions to keep your authentication process smooth.

Common Issues and Fixes #

  • OTP Not Delivered:
  • Check: Ensure mobile format is correct (e.g., 91xxxxxxxxxx) and senderId is approved.
  • Fix: Verify DLT registration and test with a new number.
  • Error Code 952 (OTP Already Verified):
  • Check: Response shows reason=OTP token is already verified.
  • Fix: Use renew=true to generate a new OTP or ensure single-use logic in your app.
  • cURL Errors:
  • Check: Look for cURL Error # in the response.
  • Fix: Confirm internet connectivity and update cURL settings (e.g., CURLOPT_TIMEOUT to 30).
  • Slow Delivery:
  • Check: High traffic or invalid callback URL.
  • Fix: Optimize your server response time and validate the callback URL.

Tips

  • Log API responses for debugging.
  • Test with the Postman collection from our documentation.
  • Contact support if issues persist beyond these steps.

Support
Stuck? Email contact @ smsgatewaycenter.com or dial +912228657726 for help.

Updated on 15/04/2025