⚡Quick answer -

Here is step-by-step checklist of the exact steps inside Facebook Business Manager (FBM) to onboard a new phone number to the WhatsApp Business Platform and assign MyOperator as your Partner.
This is the accurate partner-onboarding flow that Meta uses today (WABA creation → partner assignment → phone-number onboarding).

When should I use this guide?

Open this guide the moment you’re ready to connect your WhatsApp phone number to MyOperator. It walks you through every FBM screen, shows verification checkpoints, and flags the common errors that stall onboarding.

1. FBM Steps to Onboard a New Phone Number to WhatsApp Business & Assign MyOperator

This process has three phases:

1.Prepare FBM & Business Verification
2.Assign MyOperator as a Partner (BSP)
3.Add and Verify a Phone Number inside WhatsApp Manager

PHASE 1 — Pre-Requisites in Facebook Business Manager

1. Log in to Business Manager

Go to: https://business.facebook.com

2. Select the correct Business Account

This must be the business BAN under which your WABA will live.

3. Make sure “Business Verification” is completed

Go to:
Settings → Business Settings → Security Center → Business Verification

• Status must be Verified
• If not verified → complete verification first
  (MyOperator cannot onboard without this)

4. Ensure you have Admin Access

Go to:
Business Settings → People → Your Name → Admin access ON

• Become eligible for the green tick
  After verification and consistent usage, you can apply for an Official Business Account (OBA) status (green tick) if your brand qualifies.

PHASE 2 — Assign MyOperator as a Partner in Business Manager

MyOperator must be added as a Partner with proper asset permissions.

5. Open Business Settings

Left sidebar → Business Settings

6. Click “Partners” → “Add” → “Give a partner access to your assets”

7. Enter MyOperator’s Partner Business ID

Your MyOperator onboarding manager will provide this
(Example placeholder: 1938xxxxxxx)

8. Assign These Assets & Permissions

You must give MyOperator access to:

A. WhatsApp Accounts

• Go to Accounts → WhatsApp Accounts
• Select your WABA (or create one if needed)
• Give MyOperator:
• Manage WhatsApp Account
• View messages
• Manage phone numbers
• Manage templates

B. Phone Numbers

If numbers already exist, grant:

• Manage phone numbers

C. System User / App (if asked)

Sometimes Meta requires MyOperator’s system user to be added here as well.

Once done → MyOperator now has enough access to configure your WABA.

PHASE 3 — Add a New Phone Number Inside WhatsApp Manager (FBM)

9. Go to “WhatsApp Manager”

In the left menu:
Business Settings → Accounts → WhatsApp Accounts → Open in WhatsApp Manager

10. Create or Select Your WhatsApp Business Account (WABA)

If your WABA doesn’t exist:

• Click Add → Create a WhatsApp Business Account

If it exists → proceed.

Onboarding the Phone Number

1.Make sure display name matches:

• Website
• Public brand identity
• Supporting documents
  Otherwise Meta will reject the name.

2.Choose the verification method

Options:

• SMS / Voice Call (in case of own number)
• OTP auto-fetch (in case of MyOperator Number)

Enter the OTP when prompted.

3.Number gets registered.

4.Meta reviews your display name (usually upto 15minutes, sometimes upto 24hours)

5.Number Becomes “Connected”

Once display-name and registration pass:

• Status changes to Connected
• MyOperator can now provision templates, integrate APIs, and begin sending messages.

2. Prerequisites

3. Messaging limits after onboarding

4. Common pitfalls

• Number already linked to another WhatsApp account → remove it first.

• Incomplete website / mismatched business name → Business Verification delays.

• Wrong template category later (e.g., offer filed as Utility) → template rejection.

8. Best-practice checklist

✔️ Test OTP delivery before onboarding—failed attempts can lock the number for 24 h.

✔️ Keep business-verification documents (license, tax cert) ready for upload.

✔️ Preview templates with real variables before submitting for approval.

Keywords: WhatsApp onboarding, Facebook Business Manager, WABA setup, phone number verification, assign partner