Cancel Payables Invoice through REST API returns response as Bad Request 400

When I cancel an AP invoice through Rest API with the following body,

I always get 400 response.

{       

"InvoiceNumber": "Test Invoice",       

"BusinessUnit": "TPG Business Unit", 

"Supplier": "VISION DOMINICANA"

}

content type is set as JSON

I use POSTMAN as client tool to pass the REST API