====== Azure Organization ====== ====== Billing Methods ====== * Azure **pay-as-you-go**, also called **Microsoft Online Services Program (MSOP)**, is a direct from Microsoft purchase of Azure for organizations of all sizes * **Microsoft Customer Agreement** * **Enterprise Agreement (EA)** is a direct from purchase of Azure for large organizations that can make longer term commitments. * **Cloud Solution Provider (CSP)** is a method of purchasing Azure through a third-party partner. ===== AAD and ARM ===== * AAD and ARM are the two overarching entities that make up Azure. ====== Tenant ====== > A tenant is the organization that owns and manages a specific instance of Microsoft cloud services. It's most often used to refer to the set of Azure and Microsoft 365 services for an organization There is a one-to-one association between a tenant and an instance of Azure AD. Consequently, the term //tenant// can be used as a synonym for an instance of Azure AD. This makes sense since AAD is a core part of Azure and related services. ====== Azure Resource Manager ====== * The top-level unit of organization in AzureRM is the **root Management Group**. * Under the root Management Group there can be multiple levels of other Management Groups—up to six levels deep. * Under Management Groups there are **subscriptions**. * And under subscriptions there are **Resource Groups**. * Within Resource Groups there are resources, like virtual machines