We are Sinch We're not just experts in messaging...we’re #1. Our cloud communications platform reaches every mobile phone on the planet - in seconds or less. Learning Center A platform created with the convenience and ease of learning about our tools in mind. Information Here you can find information on how to open a ticket with our support and also how to request the activation of a new WhatsApp number. Onboarding Need more information to activate your WhatsApp number? Support Having trouble with the tool? Need support from our support?