How is Microsoft SharePoint licensed under SPLA?

Microsoft SharePoint Server is licensed Per SAL (named user) if the running instance of the software is used for sites providing internal facing content. That is, access to servers that provide content, information, and applications that are limited to internal users, must be licensed under SharePoint Server SALs.

For external facing content, partners would need to report the “SharePoint Hosting” SKU which is licensed Per Processor.