> For the complete documentation index, see [llms.txt](https://docs.formsort.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.formsort.com/integrations/integration-reference/hubspot.md).
# Hubspot
### Create the external id field for Formsort
In HubSpot, visit your **Data Model**.
Select a model to edit. Here we chose **Contacts**. Click **View Details**.
Next, click **View Contact settings**.
In **Setup** click **Manage contact properties**.
Click the orange **Create Property** button.
Here is an example property value that can be used:
{% hint style="info" %}
**Field type** should be single-line text.
{% endhint %}
Make sure **`Require unique values for this property`** is checked. The **max-character limit** needs to be at least long enough to support a UUID.
After filling out the properties, save the new field.
---
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