Advertising agents can make individual tasks faster while leaving the handoff between companies difficult. A buyer's assistant may describe an audience one way, a seller may interpret the same request differently, and an execution system may require fields that neither conversation captured. The missing work is often a shared operating definition.
IAB Tech Lab describes AAMP, its Agentic Advertising Management Protocols initiative, around foundations, protocols, and trust and transparency. The page, updated August 12, 2026, places shared schemas and reference implementations alongside execution infrastructure and agent identity. This article uses that industry direction as context for an original Aeris handoff checklist; it does not claim that every proposed capability is deployed across the market.
Describe the business object
Before connecting two agents, decide what they are exchanging. A planning request, an audience description, an inventory proposal and an accepted order are different objects with different consequences.
Define the required fields and their meaning. A budget needs a currency and a time period. An audience description needs a usable scope. An inventory proposal needs enough detail for the receiving party to understand what is being offered and what remains unavailable.
Where the chosen integration supports an established industry schema, use its definitions consistently. Keep extensions explicit so that a partner can see which fields are standard and which are specific to the relationship.
Separate a proposal from a commitment
A conversation can sound conclusive before either party has accepted an executable order. Make the workflow state visible: requested, proposed, accepted, rejected or expired. Decide which event changes the state and who has authority to trigger it.
An agent should be able to explain whether it is gathering options or committing spend. The interface should preserve the approval rules that already govern the underlying activity rather than assume that a natural-language request grants unlimited authority.
Record an expiration rule for offers that depend on changing conditions. If inventory, pricing or eligibility changes, the receiving system needs a defined response instead of silently executing an old proposal.
Agree on the meaning of success
Two systems may accept the same order while reporting different outcomes. Define delivery, spend and performance measures before launch, including time zones, reporting windows and treatment of late adjustments.
Keep operational acknowledgements distinct from business results. A successful API response can confirm receipt of a request without establishing that the campaign was activated or that the intended inventory was available.
Choose one shared reference that follows the request through the process. This makes it possible to reconcile a buyer's record with a seller's record without depending on a conversation transcript as the only source of truth.
Design the exception path
A handoff needs a clear answer to ordinary failures. What happens if a partner times out after accepting a request? What if only some line items can be fulfilled? Which changes require another approval?
Specify how the system checks the existing state before retrying. Repeated requests should not create duplicate commitments. Where an operation cannot be reversed automatically, route the exception to an accountable owner with enough context to resolve it.
Keep error messages understandable to the people operating the workflow. They should identify the affected request, the current state and the next permitted action. A technical error code alone rarely answers the commercial question.
Verify identity and scope
Know which organization operates each agent and which role it performs in this workflow. Identity information helps participants understand their counterpart, but it does not replace authorization for a particular transaction.
Apply the permissions needed for the task and record meaningful actions in an audit trail. Keep sensitive commercial or audience information within the agreed scope. A shared protocol is a way to reduce ambiguity, not a reason to widen data access without purpose.
Pilot one complete handoff
Choose a narrow buyer-to-seller workflow and test it from request to reconciliation. Include changed offers, partial failures and repeated requests in the exercise. Ask both commercial and technical owners to review the same evidence.
The value of agentic advertising is easier to assess when a completed handoff means the same thing to every participant. Shared definitions make automation more explainable, and clear responsibilities make it easier to expand after the pilot works.
Source
IAB Tech Lab: AAMP, updated August 12, 2026; reviewed September 18, 2026. The operating checklist is Aeris editorial analysis.
