You must map Advertiser IDs to PMI partners before you can map PMI IDs to your campaigns.
From the PMI PARTNERS section in IAS Signal from Campaigns > Campaign Setup > Settings > Edit.
From the Measurement Partner dropdown, choose the PMI partner you want to map.
In the Advertiser ID(s) box, enter one or more Advertiser IDs.
Click Add.
Create an IAS case with details of your inquiry to receive help from our internal support team.