Urban Airship Android push getting "This app is not configured for iOS push" -

i'm using urban airship , testing using rest api. have google cloud messaging connected urban airship account, , 1 android device registered successfully.
can send test messages the interface on urban airship dashboard.

but when try using rest api https://go.urbanairship.com/api/push/ body

{  "audience" :  "all" ,  "device_types" : "all",  "notification" : {    "android": {      "alert" : "this broadcast."    }  } } 

i 400 bad request response this app not configured ios push

any idea why?

update: listing specific device apid in "audience" section returns same result

what have correct, need include following http header:

accept: "application/vnd.urbanairship+json; version=3; 

for beginner ruby developers, can achieved this:

req = net::http::post.new(uri.path) req["accept"] = "application/vnd.urbanairship+json; version=3;" 

when, e.g., posting notification urbanairship.