With the Facebook Audience Network API i have the placement id, but not the placement name
https://graph.facebook.com/v2.7/XXX/app_insights/app_event/?period=daily&event_name=fb_ad_network_imp&aggregateBy=COUNT&breakdowns[0]=placement&access_token=XXX
{
"time": "2016-09-21T07:00:00+0000",
"value": "36785",
"breakdowns": {
"placement": "176682892738688"
}
},