How to Protect Yourself When Working with a B2B Marketing Agency

Most Polish B2B companies negotiate price, scope and start date with a marketing partner. What rarely makes it into the contract are provisions about what will be measured, who has access to the data, and what happens to everything produced during the engagement once the contract ends. That is not a minor oversight. It is a gap that, a few months in, becomes the source of real disputes: over who owns the campaign data, who holds the rights to the creative assets, why the report shows different numbers than the ad platform, and why nobody flagged a shift in trend two months earlier.

This post addresses three questions every B2B company should settle before signing with a marketing partner, not after the first quarter: what should be measured and written into the contract as KPIs, what ongoing reporting and data access should look like, and what happens to data, creative assets and ad accounts when the engagement ends.

Why a KPI Without a Definition in the Contract Is Not a KPI

The word "KPI" appears in almost every agency proposal. It appears less often in the contract itself, and less often still with a precise definition: exactly what is being measured, in which tool, over which time window, and according to which attribution methodology.

The difference between "number of leads" and "number of marketing-qualified leads (MQL) defined as contacts meeting criteria X, Y, Z, confirmed by the sales team within 5 business days" is substantial. The first definition lets an agency report every contact form submission as a success. The second requires genuine integration with your sales funnel.

Before signing, it is worth getting written answers from the partner to a few specific questions.

Which metrics will be reported and how are they defined? The answer should include the exact names of the metrics, the tools in which they are measured, and the methodology. If the partner says "reach and engagement", ask whether that is organic or paid reach, whether engagement includes link clicks or only reactions, and how any of it connects to business objectives.

Which KPIs fall within the agency's responsibility and which depend on your organisation? This question matters more than it might seem. An agency can be accountable for the number of sessions on a page but not for the conversion rate if the landing page is outside its scope. Without that boundary, each side ends up pointing at the other when results fall short.

How will results be measured in channels with a long attribution cycle? In B2B, a purchasing decision takes weeks or months. A last-click attribution model shows only the final touchpoint and systematically undervalues activity at the top of the funnel. A good partner can explain which attribution model they use and why.

Reporting: What Should Be Standard, Not a Privilege

A monthly PDF report is the minimum that many companies treat as sufficient. In practice, a monthly PDF containing whichever metrics the agency chose gives you a very limited picture. You do not know what happened in the weeks that underperformed. You cannot see how results are moving in real time. You cannot verify the numbers yourself.

The standard worth requiring is access to a live dashboard that updates automatically and that you can view without having to ask for a report. It does not need to be a complicated solution. A view in Google Looker Studio connected to your own ad and analytics accounts is enough. The key word is "your own": the data should flow from accounts you own, not the agency.

Beyond the dashboard, it is worth agreeing on a reporting rhythm that matches your company's decision-making cycle. A typical structure in a B2B relationship looks like this:

• Weekly review: short, operational, focused on anomalies and current decisions about budget or creative.

• Monthly review: analysis of results against targets, identification of trends, recommendations for the following month.

• Quarterly review: strategic assessment, a check on whether the KPIs still reflect business objectives, and any course correction needed.

Every meeting should end with a written summary of decisions made and actions assigned. A verbal conversation without documentation is difficult to hold anyone to after a few weeks.

A separate issue is who runs these meetings on the agency side. If a senior presented the proposal but a junior with no decision-making authority discusses the reports, you are dealing with a model where sales and delivery are separated. That is not an organisational quirk; it is a deliberate choice that directly affects the quality of the engagement. It is worth asking directly: who will manage your account and what is their decision-making role within the team.

Ownership of Data and Creative Assets: Three Areas to Settle Before You Start

This is the part of the contract that is easiest to overlook, because it feels abstract at the point of signing. It becomes very concrete on the day you decide to end the engagement.

Analytics and advertising data should sit on accounts you own. That means the Google Ads account, the Meta Business Manager account, the analytics tool account and any other platforms should be registered to your entity or transferred to you with full administrator rights. The agency should have access as a collaborator or manager, not as the owner. If the accounts belong to the agency, changing partners means losing the entire campaign history, audience data and remarketing lists.

Creative assets, copy and other materials produced during the engagement should be your property. A clear clause covering intellectual property rights is worth including in the contract. Without one, the legal position on ownership can be ambiguous, and how it is assessed depends on the specific circumstances, including the employment status of the creators and the terms of their contracts. We recommend reviewing specific contract language with a lawyer before signing.

Contact data and audience lists gathered during campaigns require particular attention, both in terms of ownership and regulatory compliance. The following is general information and does not constitute legal advice or data protection guidance. For specific matters, we recommend consulting a lawyer or a data protection officer. As a general principle, mailing lists, lead form data and remarketing lists should be processed in accordance with GDPR and stored on your accounts or in your CRM. The agency should not be the only party with access to that data. It is worth asking directly: where is the contact data collected through campaigns stored, and who has access to it.

Onboarding: A Realistic Timeline and Warning Signs

The question of how quickly things can start and what to expect in the first few weeks matters as much as the questions about KPIs. An onboarding period that is too short is a signal that the partner does not intend to genuinely understand your business before launching activity.

A realistic B2B onboarding takes two to four weeks and covers several stages. The first is a baseline audit: a review of existing activity, available data, ad and analytics accounts, and the starting position in the channels the engagement will cover. The second is a strategy workshop in which the partner learns about your product, market, customer segments and sales objectives. The third is agreeing on KPIs and measurement methodology, signed off by both sides before any activity begins. The fourth is tool and access configuration, including confirming that data will flow to the right accounts.

If a partner proposes launching campaigns within a few days of signing, without an audit or workshop, it is worth asking what the basis will be for decisions about targeting, budgeting and creative. A fast start usually means activity built on templates rather than on an analysis of your situation.

Another warning sign is a lack of clarity about who is responsible for delivering which materials and by when. A sound onboarding process has a schedule with named owners on both sides.

What to Put in the Contract Before You Begin

A few points worth settling contractually before the start, which rarely appear in standard agency contract templates:

• A definition of each KPI, including the measurement methodology and the tool in which it is measured.

• A commitment to transfer full administrator rights to ad and analytics accounts within a specified period after signing.

• A clause covering intellectual property rights to creative assets and content produced during the engagement.

• An offboarding procedure: what happens to data, accounts and materials within 30 days of the contract ending.

• A reporting commitment specifying frequency and format, along with access to a live dashboard.

• Named identification of the person managing the account on the agency side and their designated backup.

None of these points is particularly difficult to negotiate with a partner acting in good faith. Resistance to any of them is itself informative.

What This Looks Like in Practice When a Partner Has a Transparent Model

Unomage's approach to reporting and data ownership follows directly from the architecture of the platform. The Unomage platform (platform.unomage.com) makes it possible to monitor brand visibility and engagement metrics in real time, without waiting for a monthly PDF.

A senior-led account management model means that the person who understands the strategy and has the authority to make decisions is present at every stage of the engagement, not only at signing. That has a direct effect on the quality of reports and on how quickly changes can be acted on.

Ownership of data and creative assets is covered as standard in the contract, without needing to negotiate each point separately. That should not be a differentiator; it should be the baseline. It is worth checking whether the partner you are speaking with sees it the same way.

Questions Worth Asking at the Pre-Sales Meeting

Before signing with any marketing partner, it is worth getting written answers to the questions below. The point is not to make the conversation difficult, but to ensure the answers become part of the contract or are at least confirmed by email.

Which KPIs will be reported and how are they defined? Who owns the ad and analytics accounts? What is the format and frequency of reporting, and is there access to a live dashboard? Who manages my account on the agency side and what is their decision-making role? What happens to data, creative assets and accounts within 30 days of the contract ending? What does the onboarding process look like and how long does it take before the first activity launches?

The answers to these questions will tell you more about what day-to-day work with a given partner actually looks like than any case studies or references. A partner who answers specifically and without hesitation probably has those processes genuinely in place. A partner who says "it depends" or "we'll discuss that after signing" most likely does not have them at all.

This article was created with the help of the Unomage AI platform.