Channels

Transactional Messages That Build Trust and Trigger Revenue

Order confirmations, payment receipts, shipping alerts, OTPs — your most-opened communications. Make every transactional touchpoint a branded, revenue-generating moment.

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Capabilities

What Transactional Messaging Does

High-Volume API & SMTP

Send millions of transactional messages with sub-second latency and 99.9% delivery guarantee.

Branded Templates

Ensure every confirmation and alert is on-brand using your Brand Toolkit templates.

OTP & Authentication

Deliver time-sensitive OTPs via SMS or WhatsApp with priority routing and zero delay.

Upsell Within Transactions

Embed personalised recommendations into order confirmations — turning every send into revenue.

Real-Time Webhooks

Know the status of every message in real time. Trigger downstream actions automatically.

Compliance & Log Archiving

Maintain complete audit trails for compliance, dispute resolution, and customer service.

Expected Outcomes

What Transactional Messaging Delivers

Delivery Speed

Sub-second delivery for OTPs and authentication messages — guaranteed

From day 1
Inbox Placement

99%+ transactional email delivery rate through dedicated infrastructure

From day 1
Upsell Conversion

4-8% of order confirmation recipients click embedded upsell recommendations

Within 30 days
Support Cost Reduction

Proactive updates reduce inbound 'where is my order' queries by up to 30%

Within 60 days
Compliance Audit Readiness

100% message logs retained and accessible for dispute resolution and audits

From day 1
Trusted By

Who Uses ClusterZap Transactional Messaging

Client Name 1

E-commerce — Order and Shipping Notification Automation

Client Name 2

Fintech — Payment and Authentication Messaging

Client Name 3

Healthcare — Appointment Confirmation and OTP

Testimonials

Our Customers Speak for Us

“

Before ClusterZap, our dead-leads database was just a sunk cost. We reactivated 52% of our dormant contacts and generated an extra 20% in monthly sales.

— SK, D2C Brand, Bangalore
FAQ

Frequently Asked Questions

Transactional messages are triggered by a user action (purchase, login, booking) and are expected. Promotional messages are outbound and require explicit opt-in. ClusterZap handles both through separate sending infrastructure.

Yes. ClusterZap provides both REST API and SMTP relay for transactional email integration — compatible with all major platforms and frameworks.

ClusterZap supports multi-channel failover — if an email bounces, a WhatsApp or SMS fallback can be triggered automatically for critical notifications.

Yes, within limits. ClusterZap allows personalised product recommendations in transactional emails — keeping brand exposure within compliant bounds.

ClusterZap maintains separate dashboards, sending infrastructure, IP pools, and analytics for transactional vs promotional messaging.

Get Started with Transactional Messaging

Join 100+ companies using ClusterZap to automate, engage, and grow.

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