# Contact

#### What

A variable linked to an individual contact.\
The value persists across flows and updates as the contact’s data changes.

#### Why

Use them to store information about a contact—like their name, email, preferences, or purchase history.

#### How to use

* Set or update them via flows or imports.
* Access them with `{{contact.variableName}}`.

#### Example

If a contact has `contact.firstName = Sarah`,\
you can personalize a flow step with:

```
Hi {{contact.firstName}}, your order has shipped!
```
