---
schema_version: "1"
id: 393122780a4295a183c8fe840c01a23f41c7c3a12d8d92c74b9e5e34d069dfc0
title: MDP Apply Data Transformer
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mcidp_data_streams_tc_transformers_data_apply.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mcidp_data_streams_tc_transformers_data_apply.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 5b98939aa3c187b13ca531cd5a5f1da800b846b7aaee4a6b847f162a4cf91562
description: Select the data transformer checkbox to manipulate actual data contained in the files you upload.
products:
  - Marketing
  - Marketing Cloud Intelligence
release: "264"
---
# MDP Apply Data Transformer

Select the data transformer checkbox to manipulate actual data contained in the files you upload.

Such as transforming currency data to include a zero before the decimal point. For example: .5 (½) appears as 5 and is calculated as a whole number instead of 0.5. The Data transformer adds the necessary zeros to currency data.

1. Navigate to the **Import** tab.
2. Expand **Data Streams List**.
3. Create a data stream, or edit an existing one.
4. In the **Preview Source** screen, click **Edit Transformers**.
5. In the **Add Transformers** section, next to **Data**, click the plus icon.
6. Select the checkbox and click **Done**.