Hi Julzur,
You can use "d_cid" parameter in order to send Advertising Ids like IDFA & GAID in AAM.
Syntax- d_cid=data provider ID%01user ID
Example call-
https://subdomain.demdex.net/event?d_cid=20914%01GAID%011&d_rtbd=json&d_sid=Trait_ID
where data provider Id is Data source Id
User ID is cusotmer ID/Advertising ID
d_sid is Trait ID (if you want to qualify for an existing Trait)
You can check all supported attributes for DCS API calls in below documenation:
https://experienceleague.adobe.com/docs/audience-manager/user-guide/api-and-sdk-code/dcs/dcs-api-ref...
Thank You
Prabhat Upadhyay