Error - Loading Credit Segment for Business Partner - API Testing

Hi All

While testing the BP Credit Management API - API_CRDTMBUSINESSPARTNER, I am getting error " <message xml:lang="en">Property 'CrdtMgmtBusinessPartnerGroup' is invalid</message>.

Can anyone please help? I have checked the formatting, it is correct here.

NOTE - BP is already created using the API - API_BUSINESSPARTNER

Payload -

{
"BusinessPartner": "2000024",
"CrdtMgmtBusinessPartnerGroup": "1",
"CreditScoreAndLimitCalcRule": "STANDARD",
"CreditRiskClass": "A",
"to_CreditMgmtAccountTP":[
{
"CreditSegment": "8000",
"CreditLimitAmount": "500000"

}
]
}