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Document the Data Acceleration Report endpoint as deprecated #1905

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Document the Data Acceleration Report endpoint as deprecated
jacalata Nov 9, 2026
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State the observed Tableau Cloud response for the data acceleration r…
jacalata Nov 9, 2026
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Data acceleration report docs: use the versions and 404 behavior the …
jacalata Nov 10, 2026
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33 changes: 33 additions & 0 deletions docs/api-ref.md
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Expand Up @@ -1214,6 +1214,39 @@ for view in my_views:

---

## Data Acceleration Report

**DEPRECATED**

Tableau has retired data acceleration and its REST API methods. TSC keeps this endpoint only for older Tableau Server versions and will remove it in a future release.

The data acceleration report compared page load times for workbook sheets before and after data acceleration was enabled. Only sheets that were both accelerated and loaded by users appear in the report.

<br>

#### data_acceleration_report.get

```py
data_acceleration_report.get(req_options=None)
```

**DEPRECATED**

Returns the data acceleration report for the current site as a `DataAccelerationReportItem`. Its `comparison_records` attribute is a list of records, each with `site`, `sheet_uri`, `unaccelerated_session_count`, `avg_non_accelerated_plt`, `accelerated_session_count` and `avg_accelerated_plt`. Only server administrators and site administrators can call this method.

REST API: [Get Data Acceleration Report for a Site](https://help.tableau.com/current/api/rest_api/en-us/REST/rest_api_ref_site.htm#get_data_acceleration_report)

**Version**

Introduced in Tableau Server 2020.2 (REST API 3.8). The REST API documentation lists data acceleration as supported from Tableau Server 2020.2 (REST API 3.8) through Tableau Server 2021.4 (REST API 3.15). Tableau retired data acceleration and its REST API methods in Tableau Server 2026.2 (REST API 3.29). The method is not available on Tableau Cloud.

Tableau Cloud and Tableau Server 2026.2 and later respond to this request with a 404 (error code 404003, Resource Not Found). This was observed on Tableau Cloud with REST API 3.30 and on Tableau Server with REST API 3.31. TSC has no replacement for this method; Tableau retired view acceleration at the same time.

<br>
<br>

---

## Data Sources

Using the TSC library, you can get all the data sources on a site, or get the data sources for a specific project.
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