The free WhatsApp Business App supports only one primary user at a time. Once your business grows beyond a single person handling support, you hit a wall: missed messages, agents talking over each other on a shared phone, no visibility into who replied to what. The WhatsApp Business API solves this — it connects your WhatsApp number to a multi-agent platform where every agent has their own login, conversations are assigned and tracked, and nothing falls through the cracks. This guide walks through the complete setup from scratch using GoEasyChat (goeasy.chat) as the platform. The entire process takes 1-2 hours and requires no developer. For a practical perspective on managing high WhatsApp volume as a team, read [this post on Marcelo's blog](https://marceloretana.com/blog/como-manejar-cientos-de-mensajes-de-whatsapp-sin-volverse-loco).
Prerequisites
- →Meta Business Portfolio
A Meta Business Portfolio (business.facebook.com) is required to access the WhatsApp Business API. If you don't have one, you'll create it in Step 1. Use a company email address, not a personal Facebook account.
- →A phone number for WhatsApp
You need a phone number that is not currently registered to a personal WhatsApp account. This can be a new SIM card, a landline (can receive SMS/calls for verification), or a VoIP number. If your number is currently on the WhatsApp Business App, you can migrate it to the API while keeping the App active (coexistence mode).
- →GoEasyChat Account
GoEasyChat handles the WhatsApp Business API connection, multi-agent inbox, and team management. Sign up at goeasy.chat — a 14-day free trial is available with no credit card required upfront.
Create and Verify Your Meta Business Portfolio
Go to business.facebook.com and click 'Create account'. Enter your business name, your name, and your business email. This creates a Meta Business Portfolio — the container for your WhatsApp Business Account. If you already have one, skip creation but verify you have admin access. For optional but recommended business verification, go to Settings > Security Center and submit your business registration document or website. Verification unlocks higher messaging limits (from 1,000 to 100,000+ conversations/day) and typically takes 1-3 business days. You can complete Steps 2-8 while verification processes.
Tip: Use your real business name — this will appear in your WhatsApp Business profile and Meta's verification process
Tip: Use a business email address, not a personal Gmail or Hotmail
Tip: If your business already has a Facebook Page, link it to your Business Portfolio during setup
Sign Up for GoEasyChat and Start Your Free Trial
Go to goeasy.chat and click 'Start free trial'. Choose your plan — Starter ($39/mo, 6 agents) or Equipo ($59/mo, 12 agents). Enter your company name, preferred subdomain (e.g., yourcompany.goeasy.chat), and admin account details. The 14-day trial starts immediately with $0 upfront — you'll enter payment details but won't be charged until day 15.
Tip: Choose a subdomain that matches your brand — it's what your agents will use to log in
Tip: The admin account you create here is the main account — save those credentials securely
Tip: If you're unsure on plan size, start with Starter (6 agents) — you can upgrade later
Connect Your WhatsApp Number via Embedded Signup
After account creation, you'll be prompted to connect your WhatsApp number. Click 'Connect WhatsApp' to start Embedded Signup — a browser-based flow that connects your number using your Meta Business account. Log in with Meta, select your Business Portfolio, and either select an existing WhatsApp Business Account (WABA) or create a new one. Then add or select your phone number and verify it via SMS or phone call. The entire flow takes 5-10 minutes.
Tip: If your number is currently on the WhatsApp Business App, select 'Connect a WhatsApp Business App' (coexistence mode) — your App will continue to work on your phone while the API handles team conversations
Tip: WhatsApp Business App must be version 2.24.17 or newer and active for 7+ days for coexistence to work
Tip: If you get 'This number is already registered', check if it's connected to a personal WhatsApp account — you'll need to deregister it first in the WhatsApp app settings
Invite Your Agents
In GoEasyChat, go to Settings > Agents and click 'New Agent'. Enter each agent's name, email address, and role (admin or agent). GoEasyChat generates a secure password automatically and sends a welcome email to each agent with their login credentials. Agents can log in immediately at yourcompany.goeasy.chat and change their password from their profile settings.
Tip: Start with 2-3 agents for the first week, then add more as the team gets comfortable with the platform
Tip: Assign admin role only to team leads or managers who need to manage agents and settings
Tip: If an agent doesn't receive their welcome email, check spam folders — or share the credentials directly and have them change the password on first login
Create Teams and Enable Auto-Assignment
If your business has specialized groups — sales, support, billing, technical — create teams in Settings > Teams. Each team needs a name and description with at least 2 agents. Teams let you filter conversation views and route specific conversations to the right team manually. Then go to Settings (admin-only) and enable round-robin auto-assignment. When turned on, new incoming conversations are automatically assigned to agents in rotation — evenly distributing workload without manual intervention. The system tracks the last assigned agent so the rotation is stable even when you add or remove agents.
Tip: Keep team names simple and clear — agents will filter by these names daily
Tip: A single 'Support' team is fine for most small businesses — you can add more teams as you grow
Tip: Round-robin works best when all agents are online and available — consider disabling it outside business hours
Add Canned Responses for Your Top Questions
In Settings > Canned Responses (admin), create responses for the 10-15 questions your team gets most often. Give each a short trigger name (e.g., 'greeting', 'hours', 'pricing'). Agents can access any canned response by typing '/' in the message input — a search autocomplete appears instantly. This alone can cut average response time in half for experienced agents.
Tip: Write canned responses in the same tone your brand uses — friendly, clear, and customer-first
Tip: Include canned responses for: greeting, business hours, pricing questions, shipping FAQs, and escalation to a supervisor
Tip: Agents can use canned responses as a starting point and edit before sending — they're not required to send as-is
Create WhatsApp Message Templates
In Meta Business Manager (business.facebook.com), go to WhatsApp Manager > Message Templates and create approved templates for proactive outreach. Templates are required when the 24-hour customer care window has expired and you need to re-engage a customer. Common templates: order follow-up, appointment reminder, payment confirmation, and session re-engagement. Submit templates for Meta approval — approval typically takes under 24 hours.
Tip: Template variables use double curly braces: {{1}} for positional or {{customer_name}} for named variables
Tip: Utility templates (transactional) have higher approval rates than marketing templates
Tip: GoEasyChat shows expired-session banners in the conversation view and a template selector so agents know exactly when to use templates
Add a WhatsApp Button to Your Website and Go Live
Add a 'Chat on WhatsApp' button to your website using your number in the format: https://wa.me/[countrycode][number]. Place it in your header, contact page, and key product/pricing pages. Also add your WhatsApp number to your Google Business Profile if you have one. Brief your agents on the platform — a 30-minute walkthrough covering: claiming conversations, using canned responses (type '/'), reassigning, and handling expired sessions. You're live.
Tip: Pre-fill the WhatsApp button with a starter message: https://wa.me/50612345678?text=Hola%2C+necesito+ayuda
Tip: Monitor the first week closely — check for unassigned conversations at the end of each business day
Tip: Set a response time goal for your team (e.g., first reply within 15 minutes during business hours) and track it weekly
Next Steps
- →Submit WhatsApp message templates for Meta approval — these unlock proactive outreach after the 24-hour customer care session window closes.
- →Set a first-response SLA for your team (e.g., first reply within 15 minutes during business hours) and review it weekly.
- →Monitor the unassigned conversation queue daily in the first two weeks to catch any gaps in your routing setup.
- →Upgrade from GoEasyChat Starter to Equipo ($59/mo) when your team grows beyond 6 agents.