> For the complete documentation index, see [llms.txt](https://help.dscout.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.dscout.com/recruit-participants/dscout-scout-panel/exclude-recent-participants-from-missions.md).
# Exclude recent participants from missions
Study type
Availability
Screeners
true
Usability tests (auto-recruit)
true
Media surveys (auto-recruit)
true
Intercept studies
true
AI moderated studies (auto-recruit)
true
Recruiting from the Dscout Scout Panel is a fast and easy way to find participants for your research. However, if you’re running similar studies close together, you may want to ensure you hear from new voices—not the same Scouts who’ve already shared their insights.
With **activity filters** in screeners, usability tests, and media surveys, you can prevent Scouts from participating in your missions if they’ve already done so in the last 90 days. This ensures you’re recruiting a fresh group of Scouts every time.
{% hint style="info" %}
**Note:** Activity filters are only available when auto-recruiting from Dscout’s pool of participants (known as Scouts). When using any other recruitment method, invite only participants you want to participate in your missions.
{% endhint %}
## Activity filter options
Activity filters are enabled on screeners and missions individually, but you can choose to apply them in one of two ways:
* **Within this project:** Applies your selected filters only to Scouts who have taken part in a screener or mission in this same Dscout project.
* **Within this account:** Applies your selected filters to Scouts who have taken part in any screener or mission across your Dscout account, regardless of project.
From there, you can choose to exclude participants who fall into the following categories:
* **Mission participants from the last 90 days:** Scouts who have participated in a mission in the last 90 days.
* **Qualified screener applicants from the last 90 days:** Scouts who have applied to and qualified for a screener in the last 90 days, regardless of mission completion. Keep in mind that Scouts who have applied to screeners in the last 90 days but have not qualified will not be excluded by this filter.
* **Both:** Excludes all Scouts who fall into either of the above categories.
The following options are selected by default:
| Screener default activity filters | Study default activity filters |
| ---------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------- |
|
Within this project.
Qualified screener applicants from the last 90 days.
|
Within this project.
Mission participants from the last 90 days.
|
## Access activity filters
{% stepper %}
{% step %}
Navigate to the **Screener** tab of your screener or mission.
{% endstep %}
{% step %}
Click **Targeting attributes** in the left sidebar. The Targeting attributes side panel is displayed.
{% endstep %}
{% step %}
Click **Settings** in the Targeting attributes side panel.
{% endstep %}
{% step %}
Here, customize the activity filters to fit your research needs.
{% endstep %}
{% endstepper %}
Now, when you launch your screener or mission, only the Scouts in Dscout’s pool who meet your criteria will be able to apply to your mission.
---
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