It typically refers to a chat platform that can be customized and branded with a business’s own logo, colors, and fonts to make it look like it’s their own product, although it is built using a third-party solution.
White-label messaging is like a pre-made chat app that one company creates, but other companies can make it look like it’s their own by changing its appearance and name. Basically, it’s a chat tool that businesses can buy and use with their own branding.