# Associations

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**Archived:** This connector is no longer offered by Whalesync. Existing syncs will continue to run, but future improvements and support will be limited. See [Previous Connectors](/previous-connectors.md) for more details.
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## Associations

**TL;DR**

* Whalesync supports two-way syncing HubSpot associations :tada:
* In order to two-way sync associations, you'll need to map the field correctly
* You can map associations with foreign keys (i.e. linked records)

**Compatible Fields**

Each app calls it something slightly different, but here are the fields that are compatible with HubSpot associations.

| App      | Name          |
| -------- | ------------- |
| HubSpot  | Association   |
| Postgres | Foreign Key   |
| Airtable | Linked Record |
| Notion   | Relation      |
| Webflow  | Reference     |

For a more detailed explanation of how these types of fields work, see :point\_down:

{% content-ref url="/pages/ocVKxSMliPmoS7zWH2J6" %}
[Reference fields](/features/additional-features/reference-fields.md)
{% endcontent-ref %}

**Caveats**

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For now, Whalesync is not able to sync associations for custom objects.
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