Agentic ad buying is getting a rulebook. B2B marketers need a seat

Most B2B technology marketers still buy media the way they did five years ago: LinkedIn campaigns, a slice of programmatic, paid search and the odd sponsorship, all managed by people moving between dashboards. That is starting to change, and the rules for what comes next are being written right now, largely without marketers in the room.

What's happening

According to Marketing Brew, AgenticAdvertising.org has announced its first board. The nonprofit was formed to promote AdCP, an open-source standard the ad-tech industry launched last October so that AI agents can take part in advertising tasks such as media buying and creative management.

The board has 40 potential seats split evenly across marketers, publishers, agencies and tech companies. Board president Benjamin Masse told Marketing Brew that 22 seats are filled, with tech and publisher places full and brand and agency places still open. He said the group wanted to avoid "a standard built by techies". Working groups are tackling governance for agentic media buying and related measurement tools.

Marketing Brew also notes agents are already in use. Masse said they are buying across audio, TV and out-of-home, and the article points to agency examples in the Netherlands and the US. A separate agentic protocol is being developed by the IAB Tech Lab, which Masse doesn't see as a competitor.

What it means for B2B and technology marketers

Three things stand out for B2B tech brands and Microsoft partners.

The buyers' side is thin. When standards are shaped mostly by publishers and platforms, they tend to optimise for selling inventory. If brand-side marketers don't contribute, the defaults around transparency, measurement and spend control will reflect someone else's priorities. B2B advertisers, with small budgets and long sales cycles, are rarely the loudest voice in those rooms.

Agents need structure to work. An agent can only act on the data and rules it's given. If your campaign naming is inconsistent, your audience definitions live in someone's head and your conversion events don't reflect real pipeline, an agent will optimise for the wrong thing very efficiently.

Governance is the real work. The fact that one of the first working groups covers governance is telling. Before handing budget decisions to software, teams need clear limits on spend, brand safety, approved creative and who signs off on changes.

For Australian teams, this is a watch-and-prepare moment rather than an urgent switch. The examples reported are from overseas markets, and the standards are still settling. But the groundwork is the same groundwork that makes today's demand generation programmes perform better anyway.

How to put it to work

1. Audit your campaign taxonomy. Standardise naming for campaigns, audiences, offers and creative across LinkedIn, Google and programmatic. Agents, and humans, can't compare what isn't labelled consistently.
2. Define the outcome you actually want. Map platform conversions to pipeline stages in your CRM. If the only signal is form fills, any automated buyer will chase cheap leads rather than qualified opportunities.
3. Write your guardrails down. Document budget ceilings, excluded placements, approved messaging and escalation rules now. These become the instructions you'll give any agent later.
4. Ask your agency and platforms the question. Find out whether they're testing AdCP, the IAB Tech Lab protocol or their own agent tools, and what controls you'd keep.
5. Run a small, contained pilot when ready. Pick one channel with clear measurement, cap the spend and compare results against a human-managed control.
6. Follow the standards discussion. Even if you don't join a board, keep an eye on governance and measurement decisions, as they'll shape the tools you're offered.

How UBE Marketing can help

UBE Marketing is the Sydney marketing agency Alvin Paronda founded to give B2B tech companies an extended marketing team that keeps pace with how media buying is changing. We help B2B technology companies and Microsoft partners get their campaign data, measurement and governance ready for AI-driven media. If you want a practical view of where automation fits in your paid programme, explore our AI marketing services or our demand generation work, or get in touch.