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Amazon SES / EUM
October 21, 2025
medium impact
Track OTP success with AWS End User Messaging SMS feedback
AI Summary
AWS End User Messaging Introduces Advanced OTP Tracking with Message Feedback API AWS has introduced a sophisticated method for tracking One-Time Password (OTP) delivery and usage through its End User Messaging Message Feedback API. The solution addresses key challenges in OTP verification by providing first-party data tracking that goes beyond traditional delivery receipts. The approach involves a two-phase process: first, sending an OTP with message feedback enabled, and second, updating the message status based on verification success. Organizations can now more accurately measure authentication success rates and identify verification issues across different regions and carriers.
Key Takeaways
- • AWS End User Messaging enables first-party tracking of OTP delivery and conversion rates
- • The Message Feedback API allows setting message status as 'RECEIVED' or 'FAILED' based on verification outcome
- • Organizations can now get more accurate insights into SMS message delivery and usage patterns
- • The tracking mechanism can be applied to various SMS conversion types beyond OTPs
- • Automatic feedback status defaults to 'FAILED' if not explicitly updated within one hour
AWS End User Messaging
Messaging
Technical How-to