# Parameter action clearing

> 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 · 4 min watch · transcript available
- **Topics:** Data visualisation
- **Tools:** Tableau (parameters, table calculations)
- **Canonical:** https://just-tim.com/posts/parameter-action-clearing-in-tableau-2020-3
- **Watch:** https://www.youtu.be/f6K1lKUfrs4

I demonstrate the new parameter action default value capability introduced in Tableau 2020.3. Using Superstore Sales, I build a moving average chart with a parameter reference line, then set up a worksheet parameter action so that clicking away resets the parameter to a chosen default value.

## Key takeaways

- Tableau 2020.3 lets you set a default value for parameter actions so the parameter resets when a user deselects, rather than sticking on the last selected value
- Worksheet-level parameter actions are configured under Worksheet > Actions when you are not inside a dashboard
- You can choose whether clearing the selection keeps the current value or falls back to a value you specify
- Setting a sensible default mirrors expected Tableau behaviour where deselecting removes filters, ideal for use cases like dynamically picking a date that resets to today

Watch the full video, read the transcript and use chapter deep-links on the page: https://just-tim.com/posts/parameter-action-clearing-in-tableau-2020-3

---
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