I have created a campaign, specified the interests in the ad and successfully executed the campaign which lasted 2 days. I have got around 9 website clicks and the reach was approximately 35000. I am trying to retrieve keyword stats through api but I am getting empty json object. I followed this link. Here is the cURL command:
url -G -d "access_token=abcd" "https://graph.facebook.com/v2.7/ad_id/keywordstats"
And here is the result:
{"data":[]}
Why am I getting empty json object. Where am I going wrong? I need some assistance.