A reseller is a company or individual (merchant) that purchases goods or services with the intention of selling them rather than consuming or using them.
In Kaleyra’s ecosystem and context, a reseller is a company that takes Kaleyra’s messaging services, and then, in turn, provides these services to other companies, with a domain or whitelisted URL of their own.
The reseller company is liable to make the payments overall for the cumulative usage of their resellers, if any, as well as their customers towards Kaleyra.