Vercom: RCS Flow Studio
A CPaaS provider builds a visual campaign builder in weeks with Workflow Builder, shipping ahead of their own backend team.
Challenge
Vercom S.A., the company behind the enterprise messaging platform MessageFlow, needed a visual workflow builder for RCS (Rich Communication Services) marketing campaigns. Their enterprise clients required a no-code solution to design complex customer journeys without developer dependency.
Because RCS operates within the broader CPaaS ecosystem (combining carrier infrastructure, data orchestration, personalization, and compliance at scale) the several-month initiative required a full cross-functional team to deliver an enterprise-grade solution.
Open source couldn't scale
Existing libraries lacked RCS-specific features and couldn't handle enterprise complexity. While open‑source works for experimentation, enterprise teams like Vercom need proven architecture backed by domain experts and long‑term product reliability – which Workflow Builder delivered out of the box.
Integration constraints
The solution had to embed into Vercom's existing CPaaS platform and backend systems
Brand consistency required
Generic white-label tools wouldn't work, the interface needed to match Vercom's design system
Usability for marketing teams
Non-technical users needed to build campaigns independently, with intuitive UX and guided configuration
Foundation over framework
Vercom chose Workflow Builder as their starting point, production-ready components instead of building from scratch
RCS-specific node types
Purpose-built workflow nodes for marketing campaign automation
Static & dynamic carousels
Pre-designed product showcases or API-driven content pulled in real-time from inventory systems
Decision & validation logic
Conditional routing based on user responses, with Speedway validation to catch campaign errors before launch
API integration nodes
Connect to Vercom's backend for real-time data, CRM triggers, and system actions
Global campaign settings
Centralized panel for campaign-wide variables, audience filters, and fallback logic
Branded design system
Workflow Builder Design System tokens adapted to Vercom's visual identity
Token-based theming
Colors, typography, spacing, and components customized to match Vercom's platform
Native platform feel
RCS Flow Studio launches from Vercom's dashboard with zero visual disconnect
Guided configuration for marketers
Built-in contextual help and inline tips eliminate the need for training manuals
Self-explaining interface
Every node includes configuration hints, examples, and validation feedback
Visual campaign preview
Marketers see how carousels and messages appear on mobile before sending
I was looking for solutions that weren't just code libraries. I needed something built by people who'd solved this problem before. When I found Workflow Builder, I saw real case studies, not just documentation.
Adam Lewkowicz
Founder & CTO,Vercom
Solution
Workflow Builder's React SDK delivered a foundation that Vercom customized for RCS campaigns:
Design token flexibility
Workflow Builder Design System enabling complete brand customization without rebuilding components
Backend-agnostic integration
Clean API layer connecting to Vercom's existing CPaaS infrastructure and RCS services
React Flow foundation
Proven node architecture handling rendering, connections, and state management
Production-ready components
Pre-built panels, forms, and interactions that work out of the box
Workflow Builder is a frontend-first foundation for creating complex workflow editors, designed for seamless integration with any backend. It delivers everything needed to design workflows faster (from drag-and-drop nodes to fully customizable layouts) and is powered by 15 years of diagramming expertise from the team behind it.
Outcome
Vercom shipped RCS Flow Studio ahead of schedule and within budget, using Workflow Builder to cut development by months and free up their frontend team for other core projects.
It's a flagship validation of Workflow Builder’s ability to power complex, large-scale enterprise products like Vercom’s MessageFlow platform, with confidence and scalability at their core.
Delivered before backend integration
Category-first RCS solution
Maximum quality score
Technology
Frontend: React, TypeScript
Foundation: Workflow Builder SDK (React Flow, JSON Forms, Vite)
Integration: REST API to Vercom's CPaaS backend
Design: Custom token-based theme (Workflow Builder Design System → Vercom)
Deployment: Embedded in Vercom's existing platform
Are you…
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In need of a flexible solution to manage complex, AI-driven workflows effortlessly?
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