# List registrations of a client

`POST https://backend.estactics.com/api/leadsRegistrations/getClientRegistrationsSources`

Returns every campaign a client signed up through, newest first.

Authentication: `Authorization: Bearer YOUR_API_KEY`. Required permission: `clients.VIEW`.

## Body parameters

- `clientId` (integer, required): ID of the client.

## Example request body

```json
{
  "clientId": 1042
}
```

## Example response

```json
{
  "success": true,
  "data": [
    {
      "id": 77,
      "clientId": 1042,
      "campaignCode": "SPRING",
      "campaign": "Spring launch",
      "registeredAt": "2026-11-09 18:39:46"
    }
  ]
}
```