# AWS::StepFunctions::Activity Resource schema for Activity ## Syntax To declare this entity in your AWS CloudFormation template, use the following syntax: ### JSON
{ "Type" : "AWS::StepFunctions::Activity", "Properties" : { "Name" : String, "Tags" : [ TagsEntry, ... ] } }### YAML
Type: AWS::StepFunctions::Activity Properties: Name: String Tags: - TagsEntry## Properties #### Name _Required_: Yes _Type_: String _Minimum_:
1
_Maximum_: 80
_Update requires_: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)
#### Tags
_Required_: No
_Type_: List of TagsEntry
_Update requires_: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)
## Return Values
### Ref
When you pass the logical ID of this resource to the intrinsic `Ref` function, Ref returns the Arn.
### Fn::GetAtt
The `Fn::GetAtt` intrinsic function returns a value for a specified attribute of this type. The following are the available attributes and sample return values.
For more information about using the `Fn::GetAtt` intrinsic function, see [Fn::GetAtt](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-getatt.html).
#### Arn
Returns the Arn
value.