# Is Empty

The *Is Empty* action node allows the workflow to verify whether a user-input variable (or the response returned via an [*API Integration*](https://guides.clickatell.com/flow/action-nodes/action-nodes-api-integration) node) is empty or not. 

You can define what action should follow in each case - either route the customer to a specific step in the workflow, or trigger another workflow.

<figure><img src="https://content.gitbook.com/content/joAgInTNsBfDdfx1I23z/blobs/VV4oW8APcHXFRMXO0iY9/image.png" alt="" width="563"><figcaption><p>Setup of an Is Empty node</p></figcaption></figure>

### **Example**

<figure><img src="https://content.gitbook.com/content/joAgInTNsBfDdfx1I23z/blobs/jsbaj9SaZQCZgLVCWBXO/image.png" alt=""><figcaption></figcaption></figure>

<figure><img src="https://content.gitbook.com/content/joAgInTNsBfDdfx1I23z/blobs/ROUhc9aaoFOyvAgyueEY/image.png" alt="" width="563"><figcaption></figcaption></figure>