The Sandesh API Blog

Guides, tutorials, architectural patterns, and marketing blueprints to power your WhatsApp communications.

Integrations

How to Integrate WhatsApp API with Salesforce CRM

July 12, 20266 min read

A step-by-step developer tutorial showing how to route WhatsApp incoming messages directly to Salesforce leads and contact profiles.

Case Studies

Reducing SMS Expenses by 60% with WhatsApp Messaging

July 08, 20264 min read

Read how digital-first businesses are replacing high-volume transactional OTPs and billing invoice dispatches with WhatsApp Business APIs.

Developers

Setting Up WhatsApp Webhook Receivers in Node.js

June 28, 20268 min read

Configure an Express.js receiver backend to secure signature headers, parse payload JSON arrays, and return status acknowledgement logs.

Marketing

WhatsApp Marketing Campaigns: Best Practices for High Open Rates

June 15, 20265 min read

Avoid bans and opt-out flags. Learn how to draft approved Meta templates, configure message scheduling intervals, and segment contacts.

Developers

Securing API Connections: Rates, Whitelists & Keys

June 02, 20265 min read

An architectural guide to rotating API tokens, configuring strict rate limiters, and whitelisting server node IP blocks.