> For the complete documentation index, see [llms.txt](https://developer.collibra.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.collibra.com/tutorials/delete-assets-that-are-missing-from-source.md).
# Delete assets that are missing from source
As a result of import or synchronization operations, assets that were present in your Collibra environment but are no longer available in the external system may have their status changed to **Missing from source** instead of being permanently deleted. After a review of those assets you may want to remove them from Collibra. You can use the **Delete missing assets** workflow to delete any assets from a selected domain that have the **Missing from source** status.
{% hint style="success" %}
Download the [**Delete missing assets**](https://cdn.collibra.com/developer/Delete%20missing%20assets-bar.zip) workflow.
{% endhint %}
{% hint style="success" %}
You can adjust the workflow to target any other status by updating the **statusId** process variable.
{% endhint %}
## Configuration
After you have uploaded the workflow to your environment, access the workflow configuration via 
**Settings** → **Workflows** → **Definitions** → **Delete Missing Assets**.
The workflow is meant to run at the community level. You must change the scope of the workflow to apply to **Community**.
Additionally, you may want to change the description, the start label or to allow only specific roles to be able to start this workflow.
## Walk-through
After you have enabled the workflow, go to a community containing domains with assets that are missing from source. To start the workflow, click **Actions** → **Delete Missing Assets**.
You must select one or more domains from the current community and acknowledge that deleting those assets is an irreversible process before you can click the **Delete missing assets** button to permanently delete those assets.
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Depending on the number of assets that have the **Missing from source** status, the workflow may take some time and computing resources to complete.
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## Additional resources
* Download the [Delete missing assets-bar.zip](https://cdn.collibra.com/developer/Delete%20missing%20assets-bar.zip) workflow to publish in Collibra or edit in the Workflow Designer
* Read the [Workflow Designer documentation](/workflows/workflows-at-collibra.md).
* Read the [Introduction to builders](/tutorials/introduction-to-builders.md) tutorial.