Is The Trade Desk Running AdTech’s Most Expensive Beta Test?
The open web’s most powerful DSP is allegedly pushing buyers into a platform many say still isn’t ready.
I knew something was wrong the moment someone said the migration would be “seamless”.
Anyone who has worked in AdOps long enough knows that word is basically BS.
Seamless usually means someone has rebuilt the engine of the plane while it is still in the air and is now hoping nobody notices the turbulence and the oxygen masks hanging down.
That is roughly where we are with Kokai.
Over the last few months I have been quietly reading through trade press coverage, LinkedIn posts from traders, and some fairly emotional threads buried deep inside Reddit’s AdOps community.
And the pattern is… consistent.
Buyers are confused.
Operators are frustrated.
And the messaging around the transition from Solimar to Kokai has been, at best, “uneven”.
The moment buyers realised something had changed
For months the message across the industry sounded reassuring.
Solimar would continue to exist.
Clients could move into Kokai when they were ready.
There was no immediate forced switch.
That narrative appeared across multiple trade publications. Even AdExchanger quoted sources close to The Trade Desk saying there were “no concrete plans” to deprecate Solimar any time soon.
Then something interesting started happening.
Buyers logged in to launch campaigns and realised something had quietly changed.
You could still manage existing campaigns in Solimar.
But you could no longer create new ones.
A LinkedIn post from a programmatic buyer summed it up when she pointed out that advertisers were suddenly discovering they were being pushed into Kokai simply because the option to launch new campaigns in Solimar had disappeared.
LOL
Not exactly the “indefinite access” some teams thought they had.
And once that shift started happening, the stories began appearing everywhere like those damn spiders in spring (you know, the really big ones FML).
The bugs people keep mentioning
Spend five minutes inside the AdOps subreddit and you will quickly realise something.
Traders are not shy.
One user clearly on the verge of a breakdown wrote that launching campaigns in Kokai had turned into “a disaster”, describing repeated failures when trying to activate campaigns.
Another trader reported API connections breaking mid workflow.
Someone else mentioned audience segments refusing to save.
Another complained about being unable to add new ad accounts.
Then there were reports of KPIs simply not appearing as selectable options in the interface.
If you do not work in AdOps those sound like annoying bugs.
If you do work in AdOps you know those bugs translate into very real operational risk.
Campaigns cannot launch.
Data cannot flow.
Optimisation stops.
And when that happens, someone is calling the agency asking why performance graphs look a 2-year olds drawing of a disabled elephant.
The deal issue that keeps coming up
One of the more interesting complaints has nothing to do with the UI itself.
It relates to curated deals.
Several operators have mentioned that certain deals which run perfectly inside Solimar either fail to appear inside Kokai or receive zero bid requests once activated.
One trader described setting up the exact same deal structure in both platforms just to test it.
Solimar delivered traffic.
Kokai produced nothing.
Again, this might sound like a minor configuration issue.
Except curated deals have become a major part of supply path optimisation across the industry.
Entire buying strategies are built around them.
If those deals suddenly behave differently inside the new system, buyers start asking uncomfortable questions… like… “WTF IS GOING ON?”
And rightly so.
Missing features are making things worse
The frustration is not just about bugs.
It is also about missing functionality.
AdWeek recently reported that several buyers have been raising concerns about feature gaps between Solimar and Kokai.
One example that keeps appearing is contract groups.
For anyone outside AdOps that sounds painfully dull. Because it is.
But contract groups are extremely useful for bundling multiple private marketplace deals together so they can be activated across campaigns efficiently.
If that structure disappears, the workflow becomes slower and more manual overnight which defeats the f**king point.
Programmatic guaranteed support has also been mentioned as an area where Kokai has not fully caught up with the Solimar environment.
Again, this is not a niche capability.
Large brand campaigns rely on these structures.
So when operators discover they cannot replicate existing workflows easily, migration stops feeling like progress.
It feels like rebuilding the same house but forgetting to put the roof on.
The pressure behind Kokai
From The Trade Desk’s perspective, the urgency around Kokai makes sense.
This platform is not just a cosmetic upgrade.
It is the foundation for the company’s AI strategy.
Kokai is designed to power optimisation, planning and measurement across channels, including CTV.
It also sits alongside broader initiatives like Ventura OS and other AI driven components inside the ecosystem.
Executives have openly tied Kokai adoption to the company’s long term performance.
In fact, during earnings coverage last year, trade press reported that around 85% of clients had already moved onto Kokai.
That number matters to investors.
But percentages do not tell the whole story because adoption statistics rarely reflect what operators actually experience day to day… as we’re seeing now.
This is where the tension appears
Product teams measure adoption in login numbers.
AdOps teams measure adoption in whether their workflows still function.
Those two definitions are not the same.
You can technically be using Kokai while also spending half your day figuring out why something that worked last night no longer behaves the same way.
And that is where frustration starts to build.
Because the people experiencing those problems are the same people responsible for delivering client results.
The communication problem
One of the more interesting aspects of this situation is how inconsistent the messaging appears to be.
AdExchanger reported that some restrictions around Solimar campaign creation may actually have been influenced by agency holding company decisions rather than a direct hard switch imposed by The Trade Desk.
Which may well be true.
But from the perspective of a trader sitting at their desk trying to launch a campaign, the nuance does not really matter.
All they know is that yesterday they could create campaigns in Solimar. Today they cannot.
And nobody warned them.
In infrastructure platforms that handle billions in ad spend, surprises are rarely appreciated.
Agencies are quietly hedging
Another lame predictable reaction is diversification.
When a platform transition introduces operational uncertainty, agencies rarely panic.
They hedge.
Budgets are tested elsewhere.
Campaign structures are duplicated across multiple DSPs.
Contracts with alternative platforms suddenly become more valuable.
That does not mean anyone is abandoning The Trade Desk (yet) but it does mean agencies are protecting themselves while the migration stabilises.
Because the one thing agencies cannot risk is failing to deliver results for their clients.
The broader reality
Look none of this means Kokai will fail.
In fact the opposite is most likely.
Most major platform rebuilds go through exactly this phase.
Early instability.
Missing features.
Frustrated paying operators.
Eventually the system stabilises.
Features return.
Teams adapt.
But the transition always reveals something important about AdTech.
Despite all the talk about AI, algorithms and automation, the industry still runs on human operators.
Traders.
Engineers.
Campaign managers.
And when those people start telling the same stories across LinkedIn, Reddit and the trade press, it is usually worth paying attention.
Because behind every beta test disguised as a “platform transition” headline there are thousands and thousands of underpaid operators trying to make campaigns actually run.
Oh, and if you actually want to understand how this machine works under the hood, I literally wrote the book on it called WTF IS PROGRAMMATIC?
This took me ages to research and write. All I ask is that you hit subscribe if you found value 🖤
k, thanks, bye
.
.
.
.
.
.
Here are my key source links related to the Kokai / Solimar situation so you know it’s not BS…
Adweek – “The Trade Desk Pushes Buyers to Kokai Interface in Sign of Solimar’s Demise”
https://www.adweek.com/media/trade-desk-kokai-solimar-migration-bugs/Adweek – “Struggling Product Behind The Trade Desk’s Revenue Woes Angers Buyers and Publishers”
https://www.adweek.com/media/the-trade-desks-angers-buyers-publishers/Adweek – “The Trade Desk Posts Q3 Gains With 85% of Clients Now on Kokai”
https://www.adweek.com/media/the-trade-desk-posts-q3-gains-with-85-of-clients-now-on-kokai/Adweek – “EXCLUSIVE: The Trade Desk Partially Sunsets Controversial Kokai Feature in Latest Redesign”
https://www.adweek.com/media/exclusive-the-trade-desk-sunsets-controversial-kokai-feature-in-latest-redesign/AdExchanger – “Rumors Aside, The Trade Desk Isn’t Deprecating Solimar Any Time Soon”
https://www.adexchanger.com/platforms/rumors-aside-the-trade-desk-isnt-deprecating-solimar-any-time-soon/AdExchanger – “Critics Say The Trade Desk Is Forcing Kokai Adoption, But Apparently It’s Up to Agencies”
https://www.adexchanger.com/platforms/critics-say-the-trade-desk-is-forcing-kokai-adoption-but-apparently-its-up-to-agencies/PPC Land – “TTD forces Kokai adoption amid platform resistance”
https://ppc.land/ttd-forces-kokai-adoption-amid-platform-resistance/Reddit r/adops – “Solimar deprecation? Forced into Kokai for new launches”
https://www.reddit.com/r/adops/comments/1mpckh1/the_trade_desk_solimar_deprecation_forced_into/LinkedIn – Adweek post amplifying Kokai migration story
https://www.linkedin.com/posts/adweek_the-trade-desk-pushes-buyers-to-kokai-interface-activity-7397359618013683712-ytkYLinkedIn – Kendra Barnett post on Kokai interface changes
https://www.linkedin.com/posts/kendrabarnett_the-trade-desk-pushes-buyers-to-kokai-interface-activity-7397346585061498881-EGS7The Trade Desk Partner Portal – “Upgrade Solimar Campaigns to Kokai” (technical doc)
https://partner.thetradedesk.com/v3/portal/api/doc/KokaiCampaignUpgrade