Need some help understanding how this would work on DSP own supply

[skaurus]

Hi everyone,

I work for a recommendation service, pretty similar on a basic level to Taboola or Outbrain, just to give an idea.
So we have some publishers that work with us, and their pages have our widgets, and tiles inside these widgets are taken either by recommendations (of publisher pages) or ad creatives. But either way in these tiles could be only content provided by us.

I understand that a request from our widget will fetch some recommendations and some contextual ads from our server.
Then we will need to somehow get interest ads, but only those that browser got from us previously?
Then the widget will have to run its own auction?
Don't quite get the whole scheme.

Now, to the even more complex question. Actually, we have not only our own demand. We get demand from many partners also.
These partners give us only some part of their demand (and I'm sure this is super common in every DSP/SSP relationship).
How the whole flow will look, if we need to show in the widget only our own demand, and demand of all our partners that was meant for us?

[JensenPaul]

Running a FLEDGE auction to find interest-based ads to display in your widget makes sense.  To include the demand of others, the idea is to specify them in the interestGroupBuyers list and they should be able to bid.  In this case, you would be taking on the "seller" role in the on-device auction, choosing possible ads from among multiple on-device sources.

For the interest-based ads that might show up in your widget, do advertisers come to you directly, and let you do targeting?  Or do they perform their own targeting, and bid into an auction that you run?  If you do the targeting yourself, then it seems like you would also be the "owner" of all the interest groups that buy into the auction you run.  If not, then you would want to let other "buyers" participate in your auction also.

[skaurus]

That's very insightful, thanks, Paul!