Crafto Powers Reliable OTP Delivery at Scale with Zixflow Sendflow

With a growing user base, OTP delivery became a critical part of Crafto's user journey.

Any delay or failure in delivering an OTP could prevent a user from logging in or completing authentication, directly affecting the overall app experience.

Crafto needed an OTP infrastructure that could:

• Deliver OTPs quickly and reliably at scale.
• Reduce dependency on a single messaging route.
• Automatically handle delivery failures without requiring complex retry logic within its application.
• Give the team better visibility into OTP delivery and failures.
• Allow messaging routes and templates to be managed without constantly making changes to the application.

Crafto implemented Zixflow Sendflow to simplify and strengthen its OTP delivery infrastructure.

With a single integration, Sendflow allowed Crafto to create an intelligent OTP delivery flow with routing, retries, and fallback logic managed directly within Zixflow.

Smart OTP Routing

Sendflow routes OTP messages through the appropriate messaging route based on delivery performance, helping improve reliability during fluctuations in operator or provider performance.

Automated Retry & Fallback

Instead of allowing a failed OTP attempt to end the authentication journey, Sendflow can automatically retry the message or move to another configured channel.

This enables Crafto to build fallback journeys across channels such as SMS, WhatsApp, and RCS without developing separate routing logic for every scenario.

One API Integration

Crafto's application triggers the OTP journey through Sendflow while the routing and delivery logic is managed within Zixflow.

This reduces the engineering effort required to maintain multiple messaging integrations.

Flow-Based Configuration

The Crafto team can manage templates, routing logic, delays, and fallback paths directly within the Sendflow flow builder, making it easier to optimize OTP journeys without repeatedly changing application-side code.

Real-Time Delivery Visibility

Delivery events and message performance can be tracked from one place, helping the team identify delivery issues and optimize routes faster.

By moving its OTP delivery workflow to Zixflow Sendflow, Crafto was able to build a more resilient authentication infrastructure.

Key outcomes include:

• Cut OTP delivery failures nearly in half across its authentication journeys.
• Faster and more consistent OTP delivery for users.
• Automatic recovery of failed OTP attempts through retries and fallback routes.
• Reduced engineering dependency for changes to OTP routing and messaging logic.
• Better visibility into delivery performance across channels and providers.
• A scalable messaging infrastructure capable of supporting Crafto's growing user base.

For a consumer platform like Crafto, every failed OTP can become a failed login and potentially a lost user.

Zixflow Sendflow gave Crafto a smarter way to manage mission-critical OTP communication.

With one API integration, intelligent routing, automated retries, multi-channel fallback, and centralized delivery tracking, Crafto can focus on building its product while Sendflow manages the complexity of getting OTPs delivered.

As Crafto continues to scale, Sendflow provides the messaging infrastructure required to keep authentication fast, reliable, and ready for growing message volumes.