Tokenized Sending is a method for protecting sensitive customer data by not storing this data in Salesforce Marketing Cloud (SFMC). It allows customers to still send personalized messages and use tracking and reporting while segmenting and filtering data, without storing sensitive data in SFMC. Implementing it requires customers to build APIs to resolve tokens at send time and create tokens for inbound SMS, and to store tokens instead of sensitive data in SFMC. It is provisioned by completing an order, building and testing the required APIs, and configuring the account. It is sold by positioning it as a solution for data security and is supported like other accounts, with references to Tokenized Sending documentation.