🔥OTP SMS

Dear Client,

To ensure full integrity and data consistency in your OTP verification workflow, we strongly recommend integrating the OTP Backfill Interface alongside your API implementation. Below is the optimized integration logic:

1️⃣ Send OTP: Invoke the API to deliver SMS verification codes to end users. 2️⃣ OTP Callback: Our system will automatically send delivery reports (DR) to your server once users submit verification codes. 3️⃣ Critical Enhancement – OTP Backfill:  ▸ If the SMS provider fails to return final delivery statuses (e.g., due to network delays or asynchronous responses), this interface allows you to proactively submit confirmed delivery outcomes.  ▸ Recommended scenarios for triggering backfill:   - No callback received within X minutes of sending an OTP   - User explicitly reports not receiving the SMS   - Internal monitoring detects delivery failures

Benefits of a three-interface integration: ✅ 100% status coverage: Eliminate blind spots in SMS delivery tracking ✅ Data accuracy: Prevent statistical discrepancies caused by missing DRs ✅ Seamless UX: Enable silent retries without user intervention