# Add a new MassUserNotification for the event signups in referenceIds

**POST /api/event/trainer/mass_notification**




## Servers
- https://replace-with-own-host.iw-erp.de: https://replace-with-own-host.iw-erp.de ()


## Authentication methods
- Session token
- Jwt token internal
- Login config


## Parameters


### Query parameters
- **iw-build-id** (string)
  build id of the client
- **iw-package-id** (string)
  package id of the client

### Body: application/json (object)

- **data** (object)



## Responses
### 200
Add a new MassUserNotification for the event signups in referenceIds

#### Body: application/json (object)
- **id** (integer)

- **processed** (boolean)

- **send_push** (boolean)

- **send_mail** (boolean)

- **send_letter** (boolean)

- **reference_class_name** (string)

- **reference_ids** (array[string])

- **text** (string | null)

- **long_text** (string | null)

- **html_text** (string)

- **attachments** (array[object])

- **template** (object)

- **save_as_attachment** (boolean)

- **check_for_duplicates** (boolean)

- **created** (string(date-time))

- **updated** (string(date-time))



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