Your OTP flow is only as reliable as the route behind it: build OTP delivery with programmable routing in Python
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Your OTP flow is only as reliable as the route behind it. Your API returned success. But your user never received the code. This is where most OTP systems fail. Most OTP systems assume one thing: If the API returns success, the message will arrive. That assumption breaks in production. The problem OTP delivery is not just sending a message. It depends on: routing path traffic classification sender identity carrier filtering behavior Most SMS APIs hide these decis