# Notifications

Notification can be attached to some resources and fetched (also by sales channels) by [including](https://app.gitbook.com/s/-LgByaSP8eKjad-MIuHE/including-associations) them as an association when retrieving the resource they belong to (which is referenced in the `notifiable` attribute).

Notifications can be created manually via API (you need to use [integration](https://app.gitbook.com/s/-LgByaSP8eKjad-MIuHE/api-credentials#integration) API credentials). In some cases, they are automatically generated by some specific integrations with external services. The notification message and/or any other related information is stored within the `body` JSON object.

Notifications can be marked as `flash`. Flash notifications are temporary and will be deleted each time a new notification of the same type is created.

{% hint style="warning" %}
The `flash` feature is enabled only for notifications automatically generated based on the specific integration setup. Setting the attribute to `true` for notifications manually created via API currently has no effect.
{% endhint %}

{% hint style="info" %}
At the moment, notifications are available for [orders](https://docs.commercelayer.io/core-api-reference/orders), [line items](https://docs.commercelayer.io/core-api-reference/line_items), and [shipping methods](https://docs.commercelayer.io/core-api-reference/shipping_methods) (in the future, the feature will be extended to other resources).
{% endhint %}