WhatsApp4Dynamics is described as 'Productivity app built for Microsoft Dynamics 365 CRM. The app empowers users to communicate effectively with customers, prospects and business partners across the globe via WhatsApp without exiting the CRM ecosystem' and is an website. There are 2 alternatives to WhatsApp4Dynamics, not only websites but also apps for Self-Hosted and SaaS. The best WhatsApp4Dynamics alternative is Twilio. It's not free, so if you're looking for a free alternative, you could try Infobip.
Twilio is a web-service API that lets you use your existing web languages and skills to build voice and SMS applications. We focus on building a simple, powerful, pay-as-you-go communications platform so that you can focus on what you do best.
International Communication Platform as a Service (CPaaS) provider with zero-hop connectivity to telecoms globally. It supports all major mobile communication channels, like SMS, email, WhatsApp, Viber, voice, video and more, over API and web UI.
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