# Fetch us app to person usecase

**GET /v1/Services/{MessagingServiceSid}/Compliance/Usa2p/Usecases**


Messaging Service Use Case resource. Fetch possible use cases for service. The Use Cases API returns an empty list if there is an issue with the customer's A2P brand registration. This Brand cannot register any campaign use cases. Customers are requested to contact support with their A2P brand information.

## Servers
- https://messaging.twilio.com: https://messaging.twilio.com ()


## Authentication methods
- Account sid auth token


## Parameters

### Path parameters
- **MessagingServiceSid** (string)
  The SID of the [Messaging Service](https://www.twilio.com/docs/messaging/api/service-resource) to fetch the resource from.

### Query parameters
- **BrandRegistrationSid** (string)
  The unique string to identify the A2P brand.


## Responses
### 200
OK
#### Headers
- **Access-Control-Allow-Origin** (string)
  Specify the origin(s) allowed to access the resource
- **Access-Control-Allow-Methods** (string)
  Specify the HTTP methods allowed when accessing the resource
- **Access-Control-Allow-Headers** (string)
  Specify the headers allowed when accessing the resource
- **Access-Control-Allow-Credentials** (boolean)
  Indicates whether the browser should include credentials
- **Access-Control-Expose-Headers** (string)
  Headers exposed to the client

#### Body: application/json (object)
- **us_app_to_person_usecases** (array | null)
  Human readable name, code, description and post_approval_required (indicates whether or not post approval is required for this Use Case) of A2P Campaign Use Cases.


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