> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blinq.me/llms.txt
> Use this file to discover all available pages before exploring further.

# Blinq Marketo field reference

> Contact field mapping, custom fields, and deduplication behavior for the Blinq Marketo integration.

<Info>
  Blinq syncs contact data to standard fields on the Marketo Lead record. Tags and custom lead form responses map to custom Marketo fields.
</Info>

## Contact field mapping

If the following information is present on the Blinq contact, Blinq syncs it to the corresponding Marketo Lead field.

| Blinq contact field | Marketo Lead field |
| - | - |
| Email | `email` |
| First name | `firstName` |
| Last name | `lastName` |
| Job title | `title` |
| Company | `company` |
| Phone | `phone` |
| Mobile phone | `mobilePhone` |
| Website | `website` |

Tags and custom lead form responses map to custom Marketo fields through the field mapper. To customize which fields Blinq syncs and how they map, see [Blinq field mapping](/features/field-mapping).

## Custom fields

When tag sync is enabled, Blinq writes contact tags, workspace tags, and campaign tags to custom fields on the Lead record. Campaign membership is handled separately: a Blinq campaign links to a Marketo Program, and leads captured during the campaign window are added to that Program.

## Deduplication

Contact deduplication is always on. When an exported contact matches an existing Lead, matched on exact email address, Blinq updates that record rather than creating a duplicate.

A contact without an email address won't export.

Your Marketo instance has the final say on every export. Duplicate rules, required fields, and validation configured in Marketo can change how a record is matched or block an export entirely.

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### Need help?

For any questions or issues, [contact Blinq support](https://support.blinq.me/en/) or email [support@blinq.me](mailto:support@blinq.me).


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