--- title: "Develop handler class" slug: "develop-handler-class" tags: ["Task", "Anywhere Mobility Studio"] updated: 2026-03-20T12:50:50Z published: 2026-03-20T17:46:51Z canonical: "docs.staedean.com/develop-handler-class" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.staedean.com/llms.txt > Use this file to discover all available pages before exploring further. # Develop handler class You can use a handler on an application or a form, depending on the handler type. For a handler, a class is required. To develop this class, extend one of these classes: - DAWApplicationHandler - Extend this class to develop an application handler. - DAWFormHandler - Extend this class to develop a form handler. **Prerequisite**: Develop the extension of the DAWApplicationHandler class or DAWFormHandler class in the AOT before you start the steps. ### Steps 1. Click **Mobility design**. 2. Click **Handlers**. 3. In the list, find and select the desired record. 4. Click **Edit**. 5. In the **Class name** field, enter the name of the applicable class extension for the DAWApplicationHandler class or DAWFormHandler class. 6. In the **Handler type** field, select an option. 7. Close the page. > [!NOTE] > **Notes** > > If you deploy (export/import) an application as built in Mobility studio, make sure the related handler classes are deployed as well. You can do so with a Microsoft Dynamics Lifecycle Services project. ## Related - [Design applications](/design-applications.md) - [Design forms](/design-forms.md)