On ABAP 7.5, the endpoint requires /sap/bc/adt/cts/transports must be called with a valid content type, in order to return a response. In this case, the content type must be application/vnd.sap.as+xml; charset=UTF-8; dataname=com.sap.adt.CreateCorrectionRequest.
(see CL_CTS_ADT_RES_OBJ_RECORD->SET_RESPONSE on SAP NW Release 7.50)
On ABAP 7.5, the endpoint requires /sap/bc/adt/cts/transports must be called with a valid content type, in order to return a response. In this case, the content type must be
application/vnd.sap.as+xml; charset=UTF-8; dataname=com.sap.adt.CreateCorrectionRequest.(see CL_CTS_ADT_RES_OBJ_RECORD->SET_RESPONSE on SAP NW Release 7.50)