---
schema_version: "1"
id: 97c83e427861d5499b53b457910b905e48dd56d2ab9857d46e51aa97f5b38aa0
title: Calendar Heat Map Charts
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/analytics/264-0-0/bi_chart_intro_calheatmap.md
canonical_url: https://help.salesforce.com/s/articleView?id=analytics.bi_chart_intro_calheatmap.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 92073921586900076410dc27b39b29c2f252389186d7425b39cff5b91254bf46
description: Calendar heat maps are useful for visualizing recurring discrete activities, such as closing accounts, over long periods of time. In this chart, you can easily change the granularity of the time-based grouping, such as from month to week or day.
products:
  - CRM Analytics
  - Cross Cloud
release: "264"
---
# Calendar Heat Map Charts

Calendar heat maps are useful for visualizing recurring discrete activities, such as closing accounts, over long periods of time. In this chart, you can easily change the granularity of the time-based grouping, such as from month to week or day.

To use a calendar heat map, set a measure in the Color field and a date dimension in the Time Periods field. The underlying query groups the measure by the specified time period. The chart shows a color for each time period based on the measure.

![CRM Analytics calendar heat map chart](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-analytics-bi-264-0-0-production-enus/ec791473-f5b4-4f64-a656-9104f455d966/bi/images/bi/wave_charts_calendar_heatmap.png)

![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-analytics-bi-264-0-0-production-enus/ec791473-f5b4-4f64-a656-9104f455d966/images/icon_note.png)

Note Calendar heat map charts need a defined point in time. If a data point has a null or missing value for its time-related field, the chart can’t place it on the time axis. As a result, rows with a null value in the axis field are excluded.