---
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title: History Tracking Considerations
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locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/data/264-0-0/c360_a_insight_history_tracking_considerations.md
canonical_url: https://help.salesforce.com/s/articleView?id=data.c360_a_insight_history_tracking_considerations.htm&release=264.0.0&type=5
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content_type: documentation
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description: Keep these considerations in mind when using history tracking.
products:
  - Data 360
release: "264"
---
# History Tracking Considerations

Keep these considerations in mind when using history tracking.

- History tracking is only available for calculated insights. History tracking isn't available for streaming or real time insighst.
- Changes that affect the schema of a source calculated insight object (CIO), such as adding a new measure, truncate the history CIO data and remove existing history. History tracking resumes with the new schema on the next history job run.
    
    To retain history data, create a new source calculated insight and turn on history tracking for it.
- History tracking doesn’t impact billing for the source calculated insight. History tracking CIO billing is under the Data Queries usage type. See [Billing Considerations for Insights](https://help.salesforce.com/s/articleView?id=data.c360_a_billing_considerations_for_insights.htm&release=264.0.0&type=5 "Insights uses Data 360 to define and calculate multi-dimensional metrics across unified customer data to power real-time personalization and analytics. Use of insights impacts the consumption of credits used for billing in these usage types.").