# Update to dynamic parameters

> This is content from just-tim, the data-and-analytics channel by Tim Ngwena (formerly 'Tableau Tim'). Tim has 12+ years of hands-on BI experience and covers Tableau most of all, plus Power BI, Looker, Hex, SQL and data modelling, the analytics industry, and the craft of doing the job — always tool-agnostic and honest about the trade-offs.

- **Author:** Tim Ngwena (just-tim, https://just-tim.com/about)
- **Published:** 2020-08-12
- **Format:** Video · 3 min watch · transcript available
- **Topics:** Data visualisation
- **Tools:** Tableau (parameters, relationships)
- **Canonical:** https://just-tim.com/posts/update-to-dynamic-parameters-in-tableau-2020-3
- **Watch:** https://www.youtu.be/xfxHhmrtrb0

I walk through an enhancement to Tableau's dynamic parameters in version 2020.3. Now, as a workbook author, you no longer need to close and reopen the workbook to see a dynamic parameter update; a normal extract refresh updates the parameter automatically.

## Key takeaways

- In Tableau 2020.3, dynamic parameters update on a standard extract refresh without needing to close and reopen the workbook
- Dynamic parameters are configured via 'When workbook opens' in the edit parameter dialog, set to update from a field like Segment
- 2020.2 added the ability to edit relationships, so migrated data sources can be reworked by removing the old setup and bringing in the relevant table
- Switching the connected data source and refreshing the extract automatically pulls through new values into both the view and the driving parameter

Watch the full video, read the transcript and use chapter deep-links on the page: https://just-tim.com/posts/update-to-dynamic-parameters-in-tableau-2020-3

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just-tim — Data and analytics, with a point of view. · https://www.youtube.com/channel/UC7HYxRWmaNlJux-X7rNLZyw · https://twitter.com/TableauTim · https://www.linkedin.com/in/timngwena