Microsoft is making an ambitious availability commitment for its Azure Active Directory (AD) platform, promising to increase its Service Level Agreement (SLA) from 99,9% to 99,99% starting April 1, 2021. According to the Microsoft Vice President of Engineering Nadim Abdo said the increase “is the result of a significant and ongoing investment program aimed at continually raising the resilience level of the Azure AD service. We will also share our roadmap for the next generation of resiliency investments for Azure AD and Azure AD B2C in early 2021." Azure AD is Microsoft's cloud-based identity and access management solution and underpins infrastructure on the enterprise cloud Provides a simple authentication solution for enterprises by allowing employees to sign in and access multiple services from anywhere in the cloud using a single set of login credentials When Azure AD experiences downtime, it can have an extremely disruptive effect on a company's ability to stay productive.All Azure AD-based applications are affected, which today goes beyond solutions developed internally by Microsoft.