# Actions

Workflow contains a tree of actions and actions are where you define logic for data fetching, transforming of the data and syncing of the final resulting data.\
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Currently there are just four action types:

* [Expression](https://docs.syncmate.com/getting-started/actions/expression)
* [HTTP paginated](https://docs.syncmate.com/getting-started/actions/http-paginated)
* [Foreach](https://docs.syncmate.com/getting-started/actions/foreach)
* [CMS Data Sync](https://docs.syncmate.com/getting-started/actions/cms-data-sync)

Important concept with every action is that fields in actions that have highlighting are **JavaScript expressions**. Another important concept is that **ctx** object is used to pass data from parent into its children and to the next action in the scope.

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