GSendr - WhatsApp & Email Campaigns. One Reply Desk.
Multi-channel campaign platform for organizations — Official WhatsApp Cloud API campaigns, personalised bulk email with per-recipient PDFs, and a shared reply desk that keeps every conversation tied to the campaign that started it.
Problem Solved
Organizations needed to run email and WhatsApp campaigns across teams with stronger control over domains, templates, recipient handling, deliverability, and reply handling — but most tools treated channels as bolt-ons and left WhatsApp replies disconnected from the campaign that started them.
How I Solved It
I built a full-stack multi-tenant platform that unifies Official WhatsApp Cloud API campaigns, personalised bulk email (including per-recipient PDF attachments), recipient pipelines, and a shared WhatsApp reply desk in one operational system. Teams can send on email, WhatsApp, or both from the same audience, prove delivery, and answer replies with campaign context attached — engineered for high-volume multi-org sending with verified-domain governance and engagement analytics.
Key Features Delivered
- Official WhatsApp Cloud API — Meta approved templates, bulk WhatsApp campaigns, delivery/read tracking, and multi org sending.
- Shared WhatsApp reply desk — campaign linked conversations with free form replies inside Meta's 24 hour customer service window.
- Personalised bulk email — HTML to PDF per recipient (invoices, statements, policies) matched to spreadsheet rows in one campaign.
- Multi tenant organization model with scoped resources and teams.
- Campaign lifecycle from draft to schedule/send with status controls.
What Can Be Done Next
- Live — Email campaigns with verified domain sending, personalised attachments, and engagement analytics.
- Live — Official WhatsApp Cloud API campaigns, templates, and shared reply desk (50K+ messages sent across organizations).
- In development — AI Reply that drafts on brand WhatsApp responses from campaign + conversation context.
- Planned — Voice Blast, SMS, deeper audience segmentation and lifecycle automation, expanded deliverability diagnostics, and stronger org level policy/compliance controls.


