Last updated: January 2, 2026
Set up a phone number form field
When setting up your phone number form field, do take note of the following:
- Phone number settings must be customized on an individual form basis.
- The default phone number field only accepts numbers and characters commonly found in phone numbers such as: + - ( ) . x.
- If you've selected the option to Show country code dropdown menu, do note the following:
- The country code will be included in any number length restrictions.
- It is not possible to configure the default country code. By default, the country code will correspond to the visitor's device IP address.
To set up your phone number form field:
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In your HubSpot account, navigate to Marketing > Forms.
- Hover over the form name and click Edit.
- In the form editor, hover over the Phone number field and click the edit icon.
- In the left panel, input a Minimum and Maximum number length. If a visitor inputs a phone number that does not meet these length restrictions, they will not be able to submit the form.
- To prompt visitors to select their country from a dropdown menu and include a country code, click to toggle the Show country code dropdown menu switch on.
- In the upper right, click Update.
Add a blog subscription field in a form
It is recommended to set up and use the default blog subscription form for visitors to subscribe to your blog. If you have access to workflows, you can also create a custom checkbox field for your forms, then use a workflow to subscribe these contacts.
Add the default blog subscription field to your form
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In your HubSpot account, navigate to Marketing > Forms.
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Click the name of the form.
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In the left pane, enter Subscription in the Search box. The results will show your blog subscription properties, which will be labeled [Blog name] Email Subscription.
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Click and drag your blog email subscription field to the desired location in the form.
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In the form editor, click the email subscription field to edit its display options.
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In the top right, click Update to update the live form.
Add a custom blog subscription checkbox field to your form
Subscription required A Professional or Enterprise subscription is required to update a custom subscription field through a workflow.
- Create a single checkbox contact property:
- Create a custom contact property and set the Field type to Single checkbox.
- Ensure that the Show property in forms and bots checkbox is selected.
- Set up a workflow to add contacts as blog subscribers:
- Create a contact-based workflow.
- Set your enrollment triggers to enroll contacts who selected the checkbox.
- In your workflow, click Set up triggers.
- In the right panel, select Contact properties.
- Search for and select the new subscription checkbox property.
- Select is any of, then click the dropdown menu and select Yes.
- Click the + icon to add a workflow action.
- In the right panel, select Set contact property value.
- Click the Choose a contact property dropdown menu and select [Blog name] Email Subscription property.
- Click the Choose property value dropdown menu and select the subscription frequency for the contact.
- In the upper right, click Review and publish.
- Review your workflow actions and settings. In the upper right, click Turn on.
- Add the checkbox field in your form:
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In your HubSpot account, navigate to Marketing > Forms.
- Click the name of the form.
- In the left pane, search the name of the single checkbox contact property in the Search box.
- Click, drag and drop the property into the desired location in the form. In the form editor, click the field to edit its display options.
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- In the top right, click Publish to update the live form.
- In the top right, click Publish to update the live form.