The RezervSpot Blog
Insights, guides, and product updates to help you route traffic like a pro.
WhatsApp BSUID Webhook Changes: What Your Payload Will Look Like
Technical breakdown of the WhatsApp Business Scoped User ID (BSUID) webhook payload changes in 2026, including code examples for handling the transition.
WhatsApp Username Ideas: Creative Suggestions for Every Type of User
Hundreds of creative WhatsApp username ideas for personal accounts, businesses, creators, and professionals — with tips for choosing the perfect handle.
WhatsApp Business Username: Setup Guide for Companies
Step-by-step guide to setting up a WhatsApp Business username, including verification, integration with WhatsApp Business API, and best practices.
History of WhatsApp Usernames: From Rumor to Reality in 2026
The complete timeline of WhatsApp usernames — from early rumors in 2020 to full public rollout in 2026, including key milestones and feature evolution.
WhatsApp Username Rules: Character Limits, Allowed Characters, and Restrictions
Everything you need to know about WhatsApp username rules — character limits, allowed special characters, restricted words, and how to choose a compliant handle.
WhatsApp Username Privacy: How to Protect Your Personal Information
Learn how WhatsApp usernames protect your phone number from strangers, plus privacy best practices for businesses and individuals.
Can You Check if a WhatsApp Username Is Available?
Multiple ways to check WhatsApp username availability — directly in the app, via third-party tools, and using RezervSpot availability checker.
WhatsApp Username vs Display Name: What Is the Difference?
Understand the key differences between WhatsApp usernames and display names — visibility, uniqueness, change frequency, and use cases.
WhatsApp Username Not Showing? Here's Why
Troubleshooting why your WhatsApp username feature might not be visible.
دليل أسماء مستخدمي واتساب 2026
دليل شامل لأسماء مستخدمي واتساب للشركات والأفراد
How to Change Your WhatsApp Username
A step by step guide to changing your WhatsApp Username in 2026.
Azure Communication Services WhatsApp BSUID
Azure Communication Services WhatsApp BSUID migration guide. Update your ACS EventGrid webhooks and Azure Functions to handle Business Scoped User IDs for WhatsApp.
MessageBird WhatsApp BSUID
MessageBird WhatsApp BSUID integration guide. Learn how to handle BSUID payloads in MessageBird Inbox and Direct API for the 2026 WhatsApp username migration.
360dialog WhatsApp BSUID Migration
360dialog WhatsApp BSUID migration guide. Learn how to handle Meta raw payload changes including the contacts[0].user_id field for BSUID support.
Vonage WhatsApp BSUID Updates
Vonage Messages API BSUID migration guide. Update your WhatsApp webhook to handle string-based Business Scoped User IDs for username-initiated conversations.
Infobip WhatsApp BSUID Compatibility
Infobip WhatsApp Business API BSUID migration guide. Learn how to handle the new user_id parameter in inbound message events for username-initiated conversations.
Gupshup BSUID Integration Guide
Learn how to update your Gupshup webhook processing for WhatsApp BSUID support in 2026. Code examples for safe BSUID parsing and migration steps.
Twilio WhatsApp BSUID Migration Guide
Complete guide to migrating your Twilio WhatsApp webhooks for BSUID (Business Scoped User ID) support in 2026. Includes payload examples and migration steps.