REST API error message for ISIN DU00000COCHA reflecting as ISIN DU00000COCH3

Hi,

Wanted to check on the below issue where using DSS REST API for ISIN DU00000COCHA, getting the error message reflecting as ISIN DU00000COCH3 not found under Terms and Conditions Report Template.

I am using DSS Rest API extraction and Identifier List is having ISIN as DU00000COCHA which is a Dummy ISIN, however in the output error message I should be getting the same ISIN, Instead DSS Rest API is returning error message as ISIN DU00000COCH3 not found. I have tried using different permutation and combinations replacing ISIN values with B, C, D and also replacing it by 1,2, 4, 5, 6 all error message is returning the value of ISIN DU00000COCH3 not found.

This seems quite weird when we send ISIN DU00000COCHA to an enpoint of Rest API (given below) and the response is that DU00000COCH3 is not found.

Is it a normal behavior, is there any business rule behind?

Here is the Rest API code and error message:

body:

{

"ExtractionRequest": {

"@odata.type": "#DataScope.Select.Api.Extractions.ExtractionRequests.TermsAndConditionsExtractionRequest",

"ContentFieldNames": [

"ISIN"

],

"IdentifierList": {

"@odata.type": "#DataScope.Select.Api.Extractions.ExtractionRequests.InstrumentIdentifierList",

"InstrumentIdentifiers": [

{

"Identifier": "DU00000COCHA",

"IdentifierType": "Isin"

}

]

}

}

}

… and response (HTTP 200 OK):

{

"@odata.context": https://selectapi.datascope.refinitiv.com/RestApi/v1/$metadata#DataScope.Select.Api.Extractions.ExtractionRequests.ExtractionResult,

"Contents": [

{

"IdentifierType": "Isin",

"Identifier": "DU00000COCH3",

"Error": "Not found"

}

],

"Notes": [

"All identifiers were invalid. No extraction performed."

]

}