# SFR1 - Preview Services

Module Specification for the Azure Verified Modules (AVM) program

ID: SFR1 - Category: Composition - Preview Services Modules MAY create/adopt public preview services and features at their discretion.
Preview API versions MAY be used when:
The resource/service/feature is GA but the only API version available for the GA resource/service/feature is a preview version For example, Diagnostic Settings (Microsoft.Insights/diagnosticSettings) the latest version of the API available with GA features, like Category Groups etc., is 2021-05-01-preview Otherwise the latest “non-preview” version of the API SHOULD be used Preview services and features, SHOULD NOT be promoted and exposed, unless they are supported by the respective PG, and it’s documented publicly.
However, they MAY be exposed at the module owners discretion, but the following rules MUST be followed:
The description of each of the parameters/variables used for the preview service/feature MUST start with: “THIS IS A <PARAMETER/VARIABLE> USED FOR A PREVIEW SERVICE/FEATURE, MICROSOFT MAY NOT PROVIDE SUPPORT FOR THIS, PLEASE CHECK THE PRODUCT DOCS FOR CLARIFICATION” 

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Last Modified: 0001-01-01