---
title: "Develop custom code"
slug: "develop-custom-code"
tags: ["Task topic"]
updated: 2026-03-20T09:35:11Z
published: 2026-03-20T17:44:19Z
canonical: "docs.staedean.com/develop-custom-code"
---

> ## 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 custom code

In Connectivity Studio, you can customize handler classes for these Connectivity Studio elements:

- [Connectors](/data-management/docs/customize-connector-handler-class)
- [Documents](/data-management/docs/customize-document-handler-class)
- [Messages](/data-management/docs/customize-message-handler-class)
- [Web service actions](/data-management/docs/customize-web-service-action-handler-class)

You can also develop custom code for these elements:

- [BIS entities](/data-management/docs/customize-bis-entity-class)
- [Dialog arguments](/data-management/docs/apply-a-custom-argument-as-range-parameter-to-an-export)
- [Run message from code](/data-management/docs/run-a-message-from-custom-code)
- [Run a message asynchronous](/data-management/docs/run-a-message-asynchronously)
- [Staging tables](/data-management/docs/customize-staging-tables)
- [Event handlers](/data-management/docs/develop-custom-event-handler)