> For the complete documentation index, see [llms.txt](https://developer.firmhouse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.firmhouse.com/graphql-api/api-reference/mutations/send-subscription-notification.md).

# sendSubscriptionNotification

For Firmhouse email projects, `subject` is the email subject and `template` is rendered as HTML with Liquid. For Klaviyo projects, `subject` is the event name and `template` is rendered as a JSON object with Liquid values. Templates can use the standard Firmhouse Liquid roots and filters.

### Arguments

| Argument                                                                                                                 | Description                                 |
| ------------------------------------------------------------------------------------------------------------------------ | ------------------------------------------- |
| input ([SendSubscriptionNotificationInput](/graphql-api/api-reference/objects/send-subscription-notification-input.md)!) | Parameters for SendSubscriptionNotification |

### SendSubscriptionNotificationInput Arguments

| Argument                                                           | Description                                                                                                                                                         |
| ------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| subscriptionId ([ID](/graphql-api/api-reference/objects/id.md)!)   |                                                                                                                                                                     |
| subject ([String](/graphql-api/api-reference/objects/string.md)!)  | Email subject or, when the project uses Klaviyo, the Klaviyo event name.                                                                                            |
| template ([String](/graphql-api/api-reference/objects/string.md)!) | Complete HTML/Liquid email content for the email channel or a Liquid JSON payload for the Klaviyo channel. Standard roots include \`subscription\` and \`project\`. |

### Return fields

#### errors (\[[ModelValidationError](/graphql-api/api-reference/objects/model-validation-error.md)!]!)

#### subscription ([Subscription](/graphql-api/api-reference/objects/subscription.md))