# Amazon CloudFormation resources generated when AWS::Serverless::LayerVersion is specified
<a name="sam-specification-generated-resources-layerversion"></a>

When an `AWS::Serverless::LayerVersion` is specified, Amazon Serverless Application Model (Amazon SAM) generates an `AWS::Lambda::LayerVersion` base Amazon CloudFormation resource.

**`AWS::Lambda::LayerVersion`**  
*`LogicalId`: *`{{<layerversion‑LogicalId>}}`   
*Referenceable property: *N/A (you must use the `LogicalId` to reference this Amazon CloudFormation resource)