---
schema_version: "1"
id: 5f1a931b77afa1b2a9bb17f4993443c6665b5a9d1f2371ba62c30230ce355c68
title: About the Data Warehouse
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_pers_data_warehouse_about.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_pers_data_warehouse_about.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 7d88a1984dea1d4bea75a0a3523adf1d4147acf3ebcf54b7dccce42820ad346d
description: Learn about the Marketing Cloud Personalization Data Warehouse.
products:
  - Marketing
  - Salesforce Personalization
release: "264"
---
# About the Data Warehouse

Learn about the Marketing Cloud Personalization Data Warehouse.

![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-mktg-mc_personalization-264-0-0-production-enus/16bf1f60-f44c-4260-a56e-f052cfe515a3/images/icon_note.png)

Note The Data Warehouse is available only for customers who have already purchased the Marketing Cloud Personalization - Data Warehouse add-on product.

## Data Warehouse Environment

The Marketing Cloud Personalization Data Warehouse environment includes:

- Named users, datasets, and segments you specify
    
    For information about Data Warehouse limits, see [Limits for Marketing Cloud Personalization](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_limits.htm&release=264.0.0&type=5 "Learn about the limits and capabilities in Marketing Cloud Personalization.").
- A connection string
- Database schema, as specified in the developer documentation at [Data Warehouse](https://developer.salesforce.com/docs/marketing/personalization/guide/data-warehouse.html))
- An AWS Redshift database
- Login information

## Data Warehouse Updates

Marketing Cloud Personalization provides daily updates from the operational data store to the Data Warehouse. Data Warehouse imports are based on the most recent activity timestamp and order update time. Records updated by User ETL transfer only when there’s user activity or when you load orders.

#### See Also

- [_Developer Documentation_: Data Warehouse](https://developer.salesforce.com/docs/marketing/personalization/guide/data-warehouse.html)
- [_Developer Documentation_: Data Dictionary](https://developer.salesforce.com/docs/marketing/personalization/guide/data-dictionary.html)
- [_Developer Documentation_: Scratch Schema](https://developer.salesforce.com/docs/marketing/personalization/guide/scratch-schema.html)