> ## Documentation Index
> Fetch the complete documentation index at: https://developers.argosidentity.com/llms.txt
> Use this file to discover all available pages before exploring further.

# GET/Submission/applicantId

> Use this API to retrieve unique identifiers (`submission_id`) and email addresses of duplicated KYC submissions. Duplications are determined by matching name, date of birth, nationality, gender, and facial data.

<Warning>
  **Notes**

  * `applicant_id` is generated by comparing five data points: name, date of birth, gender, nationality, and selfie.
  * If no duplicates exist, only a single approved `submission` will be returned.
  * Ensure the `applicant_id` is first obtained using the `GET/submission` API.
  * If there is no comparable data, a random `applicant_id` is generated.
</Warning>

## 1. Endpoint

```text GET/Submission/applicantId theme={null}
GET https://rest-api.argosidentity.com/v3/submission/applicant
```

## 2. Authentication

Include the API key in the x-api-key header:

```text x-api-key theme={null}
x-api-key: {yourAPIKey}
```

## 3. Request Parameters

<ResponseField name="applicant_id" type="string" required="true">
  Unique identifier assigned to detect duplicate submissions (only for approved KYC submissions).
</ResponseField>

## 4. Request Example

```curl GET/Submission/applicantId theme={null}
curl --location --request GET 'https://rest-api.argosidentity.com/v3/submission/applicant?applicant_id={applicant_id}' \
--header 'x-api-key: {yourAPIKey}'
```

## 5. Response

### 5-1. Success Response

```json result.json theme={null}
[
    {
        "submission_id": "{submission_id1}",
        "duplicated_information" : "{duplicated_information}",
        "email": "{email1}",
    },
    {
        "submission_id": "{submission_id2}",
        "duplicated_information" : "{duplicated_information}",
        "email": "{email2}"
    },
    {
        "submission_id": "{submission_id3}",
        "duplicated_information" : "{duplicated_information}",
        "email": "{email3}"
    }
]
```

### 5-2. Response Data

| Field Name               | Description                                                                                                                                                    | Data Type |
| ------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------- |
| `submission_id`          | Unique identifier of the duplicate submission                                                                                                                  | String    |
| `duplicated_information` | A unique ID is generated based on name, date of birth, gender, and nationality for duplicate checks. (\*Always generated when all four criteria are provided.) | String    |
| `email`                  | Email address linked to the duplicate submission                                                                                                               | String    |

This API allows you to efficiently monitor and manage duplicated KYC submissions.