Order refund API giving error 501

[Subscriptions Sf]

Order refund Google API giving me following error:

{

    "error": {

        "errors": [

            {

                "domain": "global",

                "reason": "notImplemented",

                "message": "Not Implemented"

            }

        ],

        "code": 501,

        "message": "Not Implemented"

    }

}

I am making this request, as described in following URL: 

https://developers.google.com/android-publisher/api-ref/orders/refund 

I have tried it from Google API explorer as well, and it is giving me same error.

What does this error mean and how can I rectify this?

[amirparvaz Parvaz]

در سه‌شنبه 29 مهٔ 2018، ساعت 4:09:50 (UTC-7)، Subscriptions Sf نوشته:

[John Boswell]

A 5xx error is an issue with the API's backend. You should make sure the relevant API is aware of this. It looks like the best way to do this for that API is post about it on StackOverflow with this tag.

If I had to guess, likely you have hit an unexpected case in the API, maybe by structuring the parameters in an unexpected way or giving some unexpected value. While you should still post to make sure they are aware of the issue, you might also want to double-check the formats of your parameters to make sure they look right and make sure there's no warnings about their format in the APIs Explorer. There's no way to guess further without more details about the exact parameters you are using.