Dataflow stopped saving historical data

Hi sangeetaraman ,

Are the settings now the same as when it worked before? Have any changes been made?

When you need Historical Data Preservation using Power BI Dataflow, Create two entities, one for storing transactional data and another for storing historical data.

Entity for transactional data:

Always stores data for the current year. Once the entity is created, schedule it daily as needed, so as to initiate the incremental refresh.

Entity for historical data:

Only stores the historical data for the previous year and older. This entity can be scheduled if needed or can be triggered manually once a year as needed.

You can reference the following document which may be helpful to you.

Historical Data Preservation using Power BI Dataflow - Visual BI Solutions

Best Regards,
Community Support Team _ xiaosun

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