# Concat array

Source: [https://docs.virtosoftware.com/docs/virto-workflow-automation-web-part/virto-sharepoint-workflow-activities-kit-sharepoint-2010-workflow-platform/array-list-activities/concat-array/](https://docs.virtosoftware.com/docs/virto-workflow-automation-web-part/virto-sharepoint-workflow-activities-kit-sharepoint-2010-workflow-platform/array-list-activities/concat-array/)
Product: Virto Workflow Automation Web Part
Updated: 2026-08-12


This activity concatenates two arrays.

![Concat Array activity in the SharePoint Workflow Designer joining two array variables into a result variable](https://img-docs.virtosoftware.com/wp-content/uploads/2024/10/concat_array_1.png)

## **SharePoint Workflow Designer Phrase**

Concatenate **first array variable** and **second array variable** and store the result in **variable**.

**Parameters**


| Parameter | Description |
|---|---|
| first array variable | Array list. |
| second array variable | Array list. |
| variable | The output variable to store the result. |