# Dynamic parameter improvements

> 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:** 2020-12-15
- **Format:** Video · 6 min watch · transcript available
- **Topics:** Data visualisation
- **Tools:** Tableau (cloud, parameters)
- **Canonical:** https://just-tim.com/posts/dynamic-parameter-improvements
- **Watch:** https://www.youtu.be/LfQEDGZFRyU

I demonstrate a recent improvement to Tableau dynamic parameters: the ability to set the min and max values from a column when the workbook opens. I build a basic view and create a date-range parameter first in the browser with Web Edit, then repeat the same steps in Tableau Desktop.

## Key takeaways

- When creating a range parameter you can now have its min and max values feed dynamically from a column, such as order date, every time the workbook opens
- Because the values are driven by the field, users can never pick a min or max that doesn't exist in the data set
- Web Edit in the browser now has parity with desktop for creating dynamic parameters, a workflow that wasn't possible a while ago
- Right-click a date field, choose Create then Parameter, select Range and 'when the workbook opens' set the values from the field
- The same dynamic min/max parameter feature works identically in both Tableau Desktop and the browser

## Chapters

- 0:50 Building a basic view in the browser
- 1:29 Creating a dynamic range parameter
- 3:12 Testing the dynamic min and max
- 4:03 Repeating the steps in Tableau Desktop

Watch the full video, read the transcript and use chapter deep-links on the page: https://just-tim.com/posts/dynamic-parameter-improvements

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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