We upgraded our OBM from 2023.05 to 23.4 - in 23.4 the ../opr-web/rest/10.10/direct_execution API does not work anymore - it is returning http error 415 in json format:
{ "statusCode" : 415, "message" : "HTTP 415 Unsupported Media Type", "reasonPhrase" : "Unsupported Media Type" }
in the documentation of this API has no change mentioned - the doc https://docs.microfocus.com/doc/Operations_Bridge_Manager/23.4/ActionWSReference points to <OMi_HOME>/opr/api/schema/OprDataModel.xsd
which in 23.4 is 0 bytes !