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Chat App Message Service:Message sending

Last Updated:Jul 01, 2026

Send Viber business messages through Chat App Message Service.

Before you begin

Procedure

  1. Log on to the Chat App Message Service console.

  2. In the left navigation pane, choose Channel Management.

    Note

    For service providers, Channel Management appears as Customer Management.

  3. Click the Channel ID of the Viber channel you want to manage.

    image

  4. On the channel details page, choose Message Sending.

  5. Set Language to the language of your message template.

  6. Click Select Template and select a message template.

    Note

    Only Viber templates in the selected Language are shown.

  7. Select a Send Account (the Service ID linked to your channel).

  8. Choose a Send Type:

    • Timing Send: Specify a future date and time to send the message.

    • Immediately: Send the message immediately after you click Send.

  9. Select a Fallback Policy:

    • None: Do not use a fallback.

    • The drop-down list shows existing fallback policies.

      Note
      • To configure a fallback policy, you must first enable the Short Message Service (SMS) on the Service Settings page.

      • The fallback triggers when a message's delivery status is undelivered or sentFailed, or when other failures occur, such as a deleted template or invalid parameters.

  10. Select how to add recipients:

    • Upload Excel File: Best for large recipient lists. Click Download Template to download a sample file, add recipient phone numbers, then click Upload File to upload.

      Note
      • The Download Template button is disabled until you select a template.

      • If your template contains variables, use the Upload Excel File method to import recipients. Do not modify column headers in the template file, or variable mapping fails.

    • Import Phone Number Group: Best for small recipient lists. Click Add Phone Number to enter phone numbers.

    • Import Group: Best for pre-defined audiences. To create a new group, choose Intelligent Marketing > Audience Management , then click Create Group.

  11. Click Send. You can view the message sending details on the Message list page.