# Notifications

Notification can be attached to some resources and fetched (also by sales channels) by [including](/core/including-associations.md) 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](/core/api-credentials.md#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](/core-api-reference/orders.md), [line items](/core-api-reference/line_items.md), and [shipping methods](/core-api-reference/shipping_methods.md) (in the future, the feature will be extended to other resources).
{% endhint %}


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