---
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title: MDP Classification Files
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.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mcidp_harmonize_classify_files.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: ecbbebb2aded5b070283427aa3191b1bb4c51f4bd87452d24841e9f3d524a96f
description: Use classification files when creating classification rules and to tell MDP how to classify the values.
products:
  - Marketing
  - Marketing Cloud Intelligence
release: "264"
---
# MDP Classification Files

Use classification files when creating classification rules and to tell MDP how to classify the values.

For example, to categorize car models into these categories: SUV, Supermini, Family, Compact Crossover, and Subcompact. You can use any type of file format; however, you must have at least 2 headers and a maximum of 50 columns.

![classification example](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-mktg-mcidp-264-0-0-production-enus/6ea21a7c-b623-43b5-9bb1-3174d8e8301e/mcidp/images/dato_harmonize_class_ex.png)

- **[MDP Create a Classification File from Scratch](https://help.salesforce.com/s/articleView?id=mktg.mcidp_harmonize_classify_files_create.htm&release=264.0.0&type=5)**  
    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.