https://messente.com/channels/viber
Viber Business Messages: Reach a Billion Users - Messente
Reach Viber’s 1 billion users with an official Viber for Business account. Messente will manage the logistics, so you can focus on the content.
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https://botmaker.com/en/channels/google-business-messages/
Botmaker channels: Google Business Messages | Botmaker
Being available 24/7 on Google is easy thanks to Botmaker, a Google partner company. Manage your interactions in a simple and centralized way.
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https://developers.google.com/business-communications/business-messages/resources/release-notes/update-on-gbm
Update on Google Business Messages | Google for Developers
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