Edtech SMS security notifications require provider-neutral safeguards, says developer guide
A developer guide advises edtech platforms to implement provider-neutral safeguards for SMS-based security notifications and OTP verification. The recommendations include using a delivery ledger and suppression registry between applications and SMS APIs to manage failures. It stresses distinguishing between temporary failures, which can be retried, and permanent issues like invalid numbers or opt-outs, which should not be routed to alternate providers. The guide warns that treating an SMS API acceptance as proof of delivery creates false positives, and final outcomes depend on later carrier callbacks.
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