A Subscriber Access License (SAL) is a licensing model commonly used within the Microsoft Service Provider License Agreement (SPLA) framework. SALs are required for each unique user or device accessing a Microsoft server product, such as Exchange, SharePoint, or Dynamics, on hosted infrastructure. Under the SAL model, service providers report the number of users or devices accessing the service each month, offering flexibility and scalability compared to perpetual licensing.
SALs do not require a separate server license, as access rights to the hosted software, for example, Microsoft SQL Server or Dynamics applications, are included in the subscription. This is particularly advantageous for service providers delivering multi-tenant services or managing dynamic user bases, as it streamlines licensing management and ensures compliance.
Under SPLA, SALs enable providers to offer “pay-as-you-go” access to Microsoft products, billing only for active users or devices each month. This greatly benefits organizations needing to adjust user counts frequently or seeking to minimize upfront licensing costs. For users, a SAL grants access to the relevant software as long as the subscription is active, providing flexibility and predictability in IT spend.
Accurate SAL reporting is essential for compliance audits. Each unique user or device tracking must be maintained, often through Active Directory or other user management systems, to ensure integrity and transparency.
