Contlo currently supports sending via WhatsApp Service Providers or WhatsApp Business Solution Providers (BSP). We currently support Gupshup as our BSP:

The following are prerequisites:

  1. Create an account with the supported BSPs

  2. Get WhatsApp Business Account (WABA) approved and get a business phone number


Create an account

To send WhatsApp messages via Contlo, you need to have an account with BSP. If you do not have an existing BSP account, reach out to your Contlo account manager or send an email to [email protected]

Get WABA Approved



Get support from your BSP to get the WhatsApp Business Account (WABA) approved.

WhatsApp Business Account (WABA) lets businesses communicate directly with their customers via APIs (used by BSPs). The first step is to create a business account and submit it to Facebook for approval. For more information, refer to Getting Started.

Get a Phone Number

All WhatsApp Business Platform accounts rely on a valid phone number. To send messages, you need to register the phone number you want to use. For more information about how to pick a phone number and add it to your WhatsApp Business Account (WABA), refer to Phone Number.

Your business must use a valid phone number that meets the following criteria:

  • Has a country and area code, such as landline and cell numbers
  • Owned by you
  • Able to receive voice calls or SMS
  • Not a shortcode

Whitelisting/Approval of Templates



Get support from your BSP to get the templates approved or whitelisted.

WhatsApp message templates allow businesses to use pre-created and pre-approved templates to send structured messages to customers who have opted in to receive notifications. The supported template categories are Marketing and Transactional.

Messages can include appointment reminders, shipping information, issue resolution, or payment updates. Here is a list of categories supported by WhatsApp. Read more here.

Before use, businesses need to submit templates to WhatsApp directly or via WhatsApp Service Provider or BSP (For example, Infobip, Gupshup, Twilio,, and so on) for review. Message templates are reviewed by WhatsApp to ensure they do not violate WhatsApp policies. You can submit templates in two ways:

  1. Create message templates in the WhatsApp Manager, which is part of your WhatsApp Account in the Facebook Business Manager. Once approved, your business will have its own namespace where the message templates live.
  2. Create and submit message templates on the dashboard of WhatsApp Service Provider/BSP for approval. Reach out to your WhatsApp Service Provider if you need more information or help.

Update User Opt-in Data

WhatsApp messages are recommended to be sent only to users who have Opted-in to receive WhatsApp messages from your brand. The opt-in data should be updated with Contlo and the BSP.

Updating Opt-in preferences in Contlo

Contlo provides a standard attribute called WhatsApp Subscription Status , where you can update your user's opt-in preferences.


  • Get an account with BSP
  • Get your WABA and WhatsApp Business Phone Number
  • Get your templates approved/whitelisted
  • Get user's opt-in preferences updates inside Contlo and BSP

After you have completed the final checklist, configure WhatsApp in Contlo.