@Vanessa Lucisano,

Kindly note we return an empty array as response for the API "SEQ-case-investigate-results: Get screening results" in two scenarios.

1. If the case has no match

2. If the case has not been screened.

So the answer to your question is that we return an empty array as a response if the case has no matches.

That being said, there is another way to identify if the case has no matches.

1. Send a request to save a case.

2. Send a request to screen a case.

3. Call the API call "SEQ-case-audit: Retrieve the audit log for a case" to know if the case has been screened or not. The JSON response would look something like this for a case that has been screened but has no matches.

 "results": [
        {
            "id": "0a3687cf-6542-1989-9967-708500270442",
            "objectId": "0a3687d0-6542-1569-9967-70840000cbd8",
            "eventDate": "2018-09-03T04:47:47.286Z",
            "actionedByUserId": "0a3687cf-611f-145c-9866-5974000011c2",
            "actionedByUserName": "Irfan Khan",
            "note": null,
            "entityType": "CASE",
            "actionType": "SCREENED_CASE",
            "auditEventToDate": null,
            "details": {
                "detailsType": "ScreenCaseAuditDetails",
                "userId": null,
                "statusCode": "COMPLETED",
                "screeningState": "INITIAL",
                "noOfNewResults": 0,
                "noOfReviewRequiredResults": 0,
                "noOfExcludedResults": 0,
                "noOfAutoResolvedResults": 0,
                "providerTypes": [
                    "CLIENT_WATCHLIST",
                    "WATCHLIST"
                ],
                "caseScreenRequestor": null,
                "caseSystemId": "0a3687d0-6542-1569-9967-70840000cbd8"
            }
        }
    ]
}

Check for the attribute "actionType" and its value. If the value of the attribute "actionType" is SCREENED_CASE and the value of the key "noOfNewResults" (under the attribute "details")is 0. Then it can be ascertained that the case has been screened and there are no matches.

Lets have a look at another JSON response of the audit API of a case that has been screened but has matches.

 "results": [
        {
            "id": "0a3687d0-6542-190f-9967-78e3009594d6",
            "objectId": "0a3687d0-6542-1038-9967-70fc000993ff",
            "eventDate": "2018-09-03T05:24:20.587Z",
            "actionedByUserId": "0a3687cf-611f-145c-9866-5974000011c2",
            "actionedByUserName": "Irfan Khan",
            "note": null,
            "entityType": "CASE",
            "actionType": "SCREENED_CASE",
            "auditEventToDate": null,
            "details": {
                "detailsType": "ScreenCaseAuditDetails",
                "userId": null,
                "statusCode": "COMPLETED",
                "screeningState": "INITIAL",
                "noOfNewResults": 14,
                "noOfReviewRequiredResults": 0,
                "noOfExcludedResults": 0,
                "noOfAutoResolvedResults": 0,
                "providerTypes": [
                    "WATCHLIST"
                ],
                "caseScreenRequestor": null,
                "caseSystemId": "0a3687d0-6542-1038-9967-70fc000993ff"
            }
        }
    ]

For the above JSON, the value of "actionType" is SCREENED_CASE and the value of the "noOfNewResults" is 14 as there are 14 matches.

Another way to check if the case has no matches, the client can follow the below steps:

1. Save a case API

2. Screen a case API

3. Call the API call "SEQ-case-audit: Retrieve the audit log for a case" to know if the case has been screened or not. The client needs to check only the attribute "actionType" and its value as "SCREENED_CASE" to confirm if the case has been screened.

4. Call the API "SEQ-case-investigate-results: Get screening results" and if the API call returns an empty array then the case has no matches as step 4 has returned that the case has been screened.

Kindly let me know if you need further clarification on this.