---
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title: MDP Create a Classification File from Scratch
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mcidp_harmonize_classify_files_create.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mcidp_harmonize_classify_files_create.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: a7a858e81e2e4b185a54022a65819ed3e7b3e4db74c6a2ca0f6b56ecdbea990f
description: When creating classification rules you either upload a classification file or you create it from scratch. The file tells MDP how to classify your data.
products:
  - Marketing
  - Marketing Cloud Intelligence
release: "264"
---
# MDP Create a Classification File from Scratch

When creating classification rules you either upload a classification file or you create it from scratch. The file tells MDP how to classify your data.

1. From the **Harmonize** tab, select **Harmonization Center** and then **Data Classification**.
2. Edit a classification rule or create one.
3. From the **Upload Classification File** dropdown, select **Create a Classification File**.
4. Name the columns.
5. Enter classification values.
6. Click **Done**.

- **[MDP Configure Classification Rules](https://help.salesforce.com/s/articleView?id=mktg.mcidp_harmonize_classify_configure.htm&release=264.0.0&type=5)**  
    After you upload or create a classification file using data classification, customize and configure the columns in your file. Determine which column is the Key column and which is the Value column. Control the way the system recognizes values in your file as well.