# Composing action payloads with utility functions

**On this page:**

## Utility functions

You can use utility functions to compose the remote action payload templates.

#### Syntax

There are two different syntactical notations to refer to functions:

##### Shorthand notation

The shorthand notation is `$util.function()`

– using this shorter notation is usually preferable for brevity, and also *required* within the Automate with AWS post function.

##### Formal notation

The formal notation is `${util.function()}`

– using this longer notation is optional in general, but *not supported* within the Automate with AWS post function.

#### Functions

The currently available functions in the `$util`

namespace are:

## Actions

You can use utility functions in the following actions: