Skip to content
On this page

W2 Data Mortality Uk 035

About the service

W2 Data Mortality Uk 035 is a UK identity verification service that checks data against a variety of different sources to determine if the person is deceased.If there are multiple matches, it provides a list of them, up to a limit of 10.

Product Code: W2-DATA-MORTALITY-UK-035

Does this service leave a credit search Footprint? No


Query Data

The following properties pertain to this service, please note that the fields MUST be in the same order as shown below.

Property NameTypeLengthOptional/MandatoryNotes
HouseName/HouseNumberString55MandatoryEither house name or house number must be supplied may also include Flat number i.e. Flat 1, 4
PostcodeString8MandatoryMust be a valid Uk postcode.

Example Request

These are example requests when calling the W2 Data Mortality Uk 035 Service:

  "Data": {
    "DayOfBirth": 16,
    "Forename": "Brandon",
    "HouseName": "1 HANOVER GRANGE",
    "MonthOfBirth": 11,
    "Postcode": "YO167BX",
    "Surname": "Truman",
    "YearOfBirth": 1945


Example Response

"W2DataMortalityUk035Result" : {
    "MortalityResult" : {
            "MatchData" : {
                "AddressMatch" : "true",
                "DobMatch" : "true",
                "NameMatch" : "true",
                "PostcodeMatch" : "true"
            "Person" : {
                "Address1" : "1 HANOVER GRANGE",
                "Address2" : "BRIDLINGTON",
                "Address3" : "EAST RIDING OF YORKSHIRE",
                "Address4" : "Y016 7BX",
                "Address5" : "",
                "DateOfBirth" : "1945-11-1600:00:00",
                "DateOfDeath" : "2019-09-1900:00:00",
                "Forename" : "BRANDON",
                "MiddleName" : "LEWIS",
                "Postcode" : "Y0167BX",
                "Score" : "9",
                "Surname" : "TRUMAN",
                "Title" : "MR",
                "UniqueReferenceNumber" : "06186191"

Transaction Result

After performing the search, the TransactionInformation will be part of the ProcessRequestParameters returned for the service call.

The following shows the basic schema for the TransactionInformation object that is returned in the ProcessRequestResult object.

FailoverOverToDid the service encounter a third party error, and fail over to an alternate service? (Not applicable for this service).
HaltTriggeredWas there a halt condition included in the bundle that has been triggered.
ServiceInterpretResult- OneResult- MultipleResults- NoResults- NotPerformed - An error occurred and the search was not performed
ServiceTransactionResult- Success- SuccessNoResults- SuccessIncompleteResults - Too many matches generated, results truncated- **ClientErrorInsufficientInformation **- Required field not supplied- ClientErrorInformationFormatInvalidInvalid format in field- **ServerErrorGeneralError **- Error with third party service
ServiceTransactionResultMessage- One Potential Match Found- Multiple Potential Matches Found- No Potential Matches Found
ServiceValidationDetailsShows the messages related to a validation error if applicable.
ValidationResult- NotApplicable ****- No search occurred to match against- **Fail **- MissingMandatoryField or PatternNotMatched


To use sandbox the following example request can be used.

Remember to include the W2 provided API key in the Authorization Header.

Example Request

    "Bundle": "W2-DATA-MORTALITY-UK-035",
    "Data": {
      "DayOfBirth": 11,
      "Forename": "Alex",
      "HouseNumber": "81",
      "MonthOfBirth": 3,
      "Postcode": "PA33 7WB",
      "Street": "Crescent Avenue",
      "Surname": "Goodwin",
      "YearOfBirth": 1941
    "Options": {
        "Sandbox": "true"
    "ClientReference": "your-client-reference"

Sandbox cases

These are the sandbox options for these service. Learn about our Sandbox here

Click on a sandbox case to view the request and response