# Using the Amazon SAM CLI with Serverless.tf for local debugging and testing
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The Amazon Serverless Application Model Command Line Interface (Amazon SAM CLI) can be used with Serverless.tf modules for local debugging and testing of your Amazon Lambda functions and layers. The following Amazon SAM CLI commands are supported:
+ `sam build`
+ `sam local invoke`
+ `sam local start-api`
+ `sam local start-lambda`

**Note**  
Serverless.tf version 4.6.0 and newer supports Amazon SAM CLI integration.

To begin using the Amazon SAM CLI with your Serverless.tf modules, update to the latest version of Serverless.tf and the Amazon SAM CLI.

Starting from **serverless.tf version 6.0.0**, you must set the `create_sam_metadata` parameter as `true`. This generates the metadata resources that the Amazon SAM CLI `sam build` command requires.

To learn more about Serverless.tf, see the [terraform-aws-lambda-module](https://registry.terraform.io/modules/terraform-aws-modules/lambda/aws/latest).