Messaging channel · 5–10 min

Connect WhatsApp Business

Connect a WhatsApp Business number so your team can receive and reply to customer messages in Flex54.

Sign in to get started

Before you start

Have these ready

  • A Meta profile with full control of the Business Portfolio and WhatsApp Business Account.
  • A phone number that can receive SMS or voice verification if Meta asks.
  • Pop-ups and third-party cookies enabled for this setup session.

Step-by-step

Follow these steps

  1. 01

    Open Channels in Flex54

    Sign in, select Channels in the left menu, then find the WhatsApp Business card.

    Flex54 Channels page with the WhatsApp Business card visible
    Example screen. Account names may differ in your workspace.
  2. 02

    Choose how to connect your number

    Select Existing business app number to keep using the mobile app, or New or dedicated number for the WhatsApp Business Platform.

    Important: If you need to keep the number active in the mobile app, choose Existing business app number.

    WhatsApp connection dialog with existing number and dedicated number options
    Example screen. Account names may differ in your workspace.
  3. 03

    Select your Meta business

    Meta opens in a new window. Choose the Business Portfolio that owns the WhatsApp assets you want to connect.

    Meta asset selection screen for choosing a business portfolio
    Example screen. Account names may differ in your workspace.
  4. 04

    Select the WhatsApp Business Account

    Choose the correct WhatsApp Business Account. Check the business name carefully before moving on.

    Meta screen for selecting a WhatsApp Business Account
    Example screen. Account names may differ in your workspace.
  5. 05

    Add or choose a phone number

    Select the option to use a new or existing WhatsApp number. Meta may ask you to verify the number.

    Meta screen for adding or choosing a WhatsApp phone number
    Example screen. Account names may differ in your workspace.
  6. 06

    Confirm the number

    Select the phone number customers should use, then click Next.

    Meta screen with a WhatsApp phone number selected
    Example screen. Account names may differ in your workspace.
  7. 07

    Wait for Meta to finish

    Keep the window open while Meta connects the account.

    Meta connecting a WhatsApp account to Flex54
    Example screen. Account names may differ in your workspace.
  8. 08

    Finish and return to Flex54

    When Meta confirms the connection, click Finish and return to Flex54.

    Meta confirmation that the WhatsApp account is connected to Flex54
    Example screen. Account names may differ in your workspace.
  9. 09

    Check the connected status

    The WhatsApp card should show as connected. Send a test message and confirm it appears in Conversations.

    Flex54 WhatsApp Business card showing a connected status
    Example screen. Account names may differ in your workspace.

Connection complete

Confirm everything works

  • WhatsApp Business shows Connected in Channels.
  • A test inbound message appears in Conversations.
  • Your team can send a reply from Flex54.

Troubleshooting

If something doesn't work

The number does not appear

Confirm the number belongs to the selected WhatsApp Business Account and that your Meta profile has full control.

The mobile app stopped working

Confirm you selected Existing business app number. A dedicated Platform number is managed through the platform.

Meta says the business is under review

Follow the status in Meta Business Manager and retry after approval.

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