---
title: "Apply custom handler (Field option)"
slug: "apply-custom-handler-field-option"
tags: ["Task topic"]
updated: 2026-03-20T08:03:02Z
published: 2026-03-20T17:44:14Z
canonical: "docs.staedean.com/apply-custom-handler-field-option"
---

> ## 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.

# Apply custom handler (Field option)

You can use a handler class to set the target field value. Several handler classes are available. For example, to get the current date, to add the time to a date, or to get the current company.

### Steps

1. Click **Connectivity studio - Integration Design**.
2. On the **Message** tab, in the list, find and select the desired message.
3. Click **Edit**.
4. In the **Mapping** section, in the **Target record** pane, in the list, find and select the desired target record.
5. On the **Mapping** tab, on the **Field mapping** tab, in the list, find and select the desired field mapping.
6. Click the **Field options** tab.
7. Select the **Custom** check box.
8. In the **Handler** field, enter or select a value.

> [!NOTE]
> **Note**
> 
> You can develop a custom handler class. This must be derived from the '**BisMappingCustomMethod**' class.
9. Before the target value is set, you can apply a type conversion to the value that is returned by the custom handler.

In the **Type conversions** field, enter or select a value.
10. Close the page.