Case Study
Sendara: Native iMessage & Calling Integration for GHL
Marketplace ready GHL Messaging and call provider
Client
Sendara
Role
Lead API Developer & Systems Architect
Built By
Xylator AI
Platform
GoHighLevel
Overview
Sendara wanted to revolutionize how agencies communicate with leads in GoHighLevel by bringing native iMessage and calling directly into the CRM. Traditional SMS campaigns suffer from low engagement and strict, time-consuming A2P 10DLC registration processes. We architected and developed a fully GHL Marketplace-ready application that integrates Sendara as a Custom Conversation and Call Provider. This allows businesses to send verified 'blue bubbles' instantly, bypassing A2P limits, enabling high-res media sharing, and significantly boosting response rates.
✕The Problem
- • Traditional CRM SMS campaigns suffer from being 'left on read' with low engagement
- • Complex and restrictive A2P 10DLC registration processes block instant onboarding
- • Lack of read receipts, typing indicators, and high-res media in standard SMS
- • Disjointed workflow automation for non-standard communication channels
- • Need for a robust, marketplace-approved app that seamlessly blends into GHL natively
✓The Goal
- • Build a GHL Marketplace-ready app with OAuth 2.0 implementation
- • Develop Custom Conversation (iMessage) and Call Providers seamlessly integrated into the GHL UI
- • Eliminate the need for A2P registration, enabling instant outbound messaging
- • Create advanced custom workflow actions and triggers specifically for Sendara routing
- • Achieve a 45%+ average response rate (2-3x higher than standard SMS) for end-users
Key Results
- Successfully developed a fully compliant, GHL Marketplace-ready application
- Enabled users to bypass A2P registration for instant onboarding
- Achieved a 45%+ average response rate, essentially doubling or tripling client engagement
- Delivered 'Blue Bubble' verified sender status and high-res media capabilities natively
- Empowered agencies with deep workflow automation through 5 custom actions and triggers
- Seamlessly unified calls and iMessage into the centralized GHL Conversations UI
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The Solution
Custom Conversation & Call Providers
Utilized GHL's Provider APIs to inject Sendara directly into the native Conversations tab. Built robust webhook handling for bidirectional syncing of iMessage (SMS type) and voice calls, maintaining a native feel within the CRM.
Dynamic 'Platform Lookup' Routing
Engineered a custom 'Platform Lookup' workflow action that queries device operating systems in real-time. This allows workflows to intelligently route messages as native iMessages for iOS users, maximizing deliverability and engagement.
Asynchronous 'Wait For Reply' Engine
Developed a complex, stateful custom action that pauses a GHL automation sequence until the lead replies. Leveraging advanced webhook callbacks, the system instantly resumes the specific workflow execution the moment a response is detected.
Bi-Directional Lead Synchronization
Built 'Get Lead' and 'Update Lead' custom actions using GHL's v2 API, enabling agencies to seamlessly pull deep contact data, manipulate it based on conversation context, and push updated fields back into the CRM mid-workflow.
Custom 'Message Received' Trigger
Engineered a reliable, low-latency custom workflow trigger that instantly fires automations when a user replies via iMessage, ensuring real-time lead engagement and accurate conversation tracking.
High-Fidelity Messaging Architecture
Integrated specialized messaging APIs to bypass standard SMS carrier limits, enabling verified sender status, interactive messaging, read receipts, and high-resolution media payloads directly from GHL.
Scalable Marketplace & OAuth Integration
Architected a secure backend with a strict OAuth 2.0 authorization flow, allowing 1-click installation from the GHL Marketplace while safely isolating API keys and subaccount data across a multi-tenant environment.
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