---
schema_version: "1"
id: 00156b6796db3d1586b9c03efd1fd66219b39d08de1f4782b6e0dd3d6227197a
title: Preview and Test Data Mappers
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/xcloud/264-0-0/os_preview_test_datamappers.md
canonical_url: https://help.salesforce.com/s/articleView?id=xcloud.os_preview_test_datamappers.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: b6822e27a40ea3f9203bae3f7e961d3dbdb99bb12e74e7be08d70372f3e6531a
description: You can preview and test the input and output of a Data Mapper in the Data Mapper Designer.
products:
  - Omnistudio
release: "264"
---
# Preview and Test Data Mappers

You can preview and test the input and output of a Data Mapper in the Data Mapper Designer.

1. In your Data Mapper, click **Preview**.
2. Click **Edit as Params**.
3. In the Input Parameters panel, add a key-value pair.
    
    Alternatively, you can specify the input in JSON format.
4. To observe the effects of caching when testing the Data Mapper Load, deselect **Ignore Cache**.
    
    See [Improving Data Mapper Performance with Caching](https://help.salesforce.com/s/articleView?id=xcloud.os_cache_for_dataraptors_and_integration_procedures_48057.htm&release=264.0.0&type=5 "Omnistudio offers multiple caching options to improve performance and minimize unnecessary data processing in Data Mappers. The two primary user-configurable caching types are Org Cache and Session Cache, which are available in the Data Mapper designer. These caching mechanisms are part of the Salesforce Platform Cache and are implemented through Scale Cache in Omnistudio with standard runtime. Each serves a distinct purpose and comes with specific configuration considerations.").
5. Click **Execute**.

Load Results — The Objects Created panel lists the resulting objects, which are saved permanently. The Debug Log panel displays the results of the Salesforce queries issued by the Data Mapper.

Extract Results — The Response panel displays the resulting data, and the Debug Log panel shows the results of the Salesforce queries issued by the Data Mapper. For example, if the Data Mapper filters Accounts based on an Id provided by an Omniscript, a key-value pair lets you test the Data Mapper using a specific Account Id.

Extract Turbo Results — The Response panel displays the resulting data, and the Debug Log panel displays the results of the Salesforce queries issued by the Data Mapper. For example, if the Data Mapper filters accounts based on an ID, a key-value pair lets you test the Data Mapper using a specific Account Id.

Transform Results — The Response panel displays the resulting data, and the Debug Log panel displays the results of the Salesforce queries issued by the Data Mapper.

![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-xcloud-omnistudio-264-0-0-production-enus/f526eaa8-ae05-487a-8944-4bb99b0b78ac/images/icon_note.png)

Note

The Data Mapper Transform removes trailing zeros from decimal values when displayed in the Response panel. For example, when you enter 1,234.50 in the Input Parameters panel, the result shows as 1,234.5 in the Response panel after processing.