Support policies
Support policies govern how and when Microsoft will offer assistance for a particular product or service. From the support perspective, both public and private previews typically do not have to abide by the standard Service-Level Agreement (SLA) terms for the service. Public and private previews may have their own limited SLAs, may have no SLA defined, or may explicitly inform you that there is no expectation of any particular responsiveness or availability. And, as stated earlier, previews can be ended or discontinued at any time with no or limited warning.
Unless the preview's specific terms and conditions stipulate differently, preview products are excluded from all SLAs and warranty claims, and the unavailability of products in preview will not constitute an SLA breach that would result in service credit. An example set of preview terms is shown in the following screenshot:
Products in general...