XML to JSON custom conversion not working Rest adapter receiver

Hi Experts,

we are on PO 7.5 and

as per blog https://blogs.sap.com/2016/01/13/rest-adapter-in-sap-pipo-enhanced-xmljson-conversion/ , the design has been done.

However , even after entering details such as namespace , field in conversion table the output JSON does not have array for a single instance of the parent node.I have put ArrayType as true

Is there anything I am missing here?.. can you pls guide?