I'm trying to get Insight of an Ad-Account by filtering using multiple specific campaigns, I was able to filter with single specific campaigns Here is the code which I tried for single specific campaigns
https://graph.facebook.com/v12.0/act_YOUR_ACCOUNT_ID/insights?fields=actions,reach,impressions,clicks,cpc,spend&filtering=[{field: "campaign.id",operator:"CONTAIN", value: '123456789'}}]
You have 2 options:
INoperator instead ofCONTAINoperator like this: