Inserts a new dynamic targeting key. Keys must be created at the advertiser level before being assigned to the advertiser's ads, creatives, or placements. There is a maximum of 1000 keys per advertiser, out of which a maximum of 20 keys can be assigned per ad, creative, or placement.
The URL uses gRPC Transcoding syntax.
User profile ID associated with this request.
The request body contains an instance of
If successful, the response body contains a newly created instance of
Requires the following OAuth scope: