How to Choose a Digital Marketing Agency: Accounts, Data, Reports

When choosing a digital marketing agency, look past the growth curves in the pitch and focus on the answers to three questions: in whose name will the ad and analytics accounts be opened, where will the measurement data live, and what decision will the monthly report help you make? An agency that gives clear, written answers to these three is likely to work with the same transparency on channel choice, budget and compliance. The seven questions below apply to SEO, Google Ads, social media, email and conversion optimization alike, whether you buy one channel or all of them.

What does a digital marketing agency do?

A digital marketing agency plans, runs and measures a business's online customer acquisition. Typical services include search engine optimization, search and display advertising, social media management and ads, email and SMS marketing, marketplace management, conversion rate optimization and, more recently, visibility in AI answer engines. Some agencies offer all of these; others specialize in a single channel.

If you are looking for an agency for just one channel, channel-specific questions are more useful. We have separate guides for choosing an SEO agency, a Google Ads agency and a social media agency. This post is for those considering handing several channels to one agency.

One agency or a specialist for each channel?

The advantage of a single agency is that budget can be shifted between channels based on the same data: when search ads get more expensive, the decision to move budget to SEO or email is made at one table. The downside is that the agency may be weaker in some channels. Hiring a specialist per channel brings depth, but it also brings the "the drop was the other agency's fault" debate.

Whichever you choose, the measurement accounts must be yours and every channel must be reported against the same conversion definition. Otherwise each agency can count the same sale as its own success.

1. In whose name will the ad and analytics accounts be opened?

Google Ads, Meta ad assets, the Google Analytics property, Search Console and the tag manager should be opened in your business's name, with the agency added as an authorized user. In Google Analytics, adding or changing users requires the Administrator role at the account or property level; at least one person from your company should hold that role. In Search Console, only the property owner can grant permissions to others.

In the reverse setup, where the accounts are opened in the agency's name and you are given access, the historical data and campaign learnings stay with the agency when you part ways. Put it in the contract: the accounts belong to the business, the access belongs to the agency.

2. Is measurement set up in the first week?

Conversions should be defined before any ads go live: form submissions, phone clicks, add-to-cart and purchases, appointments. A campaign launched without measurement can never tell you what the budget actually brought in. Ask the agency, "What will be set up in the first week?" The answer should be a measurement plan, not a campaign. The same principle applies to SEO: current impressions, clicks and page performance are recorded first, and the plan is built against that baseline.

3. What decision does the report help you make?

Impressions and clicks are raw data. A good report answers questions like these: which channel brought customers and at what cost, where was money wasted, and where should budget move next month? Ask for a sample report and ask yourself, "What decision would I make after reading this?"

Fee transparency is part of reporting too. Google's third-party policy requires agencies that manage Google ads on behalf of clients to disclose their management fees in writing before the first sale, and to report costs as the full amount charged by Google, excluding agency fees. Ask for the same clarity on other channels.

4. Is channel choice based on your business or on the agency's habits?

Not every business needs to be on every channel. Search and LinkedIn may matter most for a B2B manufacturer, social media and marketplaces for a retail brand, and local search and review management for a local service business. The agency should base its channel recommendation on where your customers are and how long their decision process takes. An agency that proposes the same package to every client has no strategy.

5. How will customer data and advertising rules be handled?

If the agency manages your email list, uploads customer lists to ad platforms or collects form data on your behalf, it is processing personal data. In Turkey, Article 12 of the Personal Data Protection Law (No. 6698) requires the data controller to take the necessary technical and administrative measures, and if data is processed by someone else on its behalf, both are jointly responsible for those measures. Ask the agency where the data is stored, who can access it and how it will be deleted when the work ends.

Advertising content rules have also tightened in Turkey. Under a regulation amendment that took effect on 1 August 2026, influencer ads must carry an "Ad" or "Promotion" label; disclosing the use of AI that would significantly influence consumers, and not commissioning untrue reviews to boost sales, are part of the same amendment. An agency producing creative for the Turkish market needs to know these rules.

6. What about the contract, budget rules and exit?

The agency fee and the ad budget should be separate items, and the budget should preferably be paid directly from your own ad accounts. The contract term, the termination notice period and what is handed over when you part ways (account permissions, creative files, reports, keyword and audience lists) should be written down from the start. Being unable to leave a relationship that is going badly costs more than a bad campaign.

7. Is there a link to your website and sales process?

If ad traffic lands on a page where nobody fills in the form, the budget drains away. Whose job are page speed, form fixes and landing page tests? Do incoming leads land in your CRM, and can you see how quickly the sales team follows up? If marketing and the web team are separate, the boundary of responsibility should be written into the contract; if they are under one roof, this link is easier to build.

Checklist for comparing proposals

• Are all accounts in your business's name, with at least one administrator on your side?
• Does the measurement plan come before the campaigns?
• Is the report built to support decisions, and are fees shown separately?
• Is the channel recommendation based on customer data?
• Is there a written approach to personal data and advertising rules?
• Are the termination and handover clauses clear?
• Who is responsible for the link to the website and CRM?

Take this list to your proposal meetings; when you put the answers side by side, the decision gets easier. You can ask us the same questions, and see the scope of our digital marketing services. Our teams work from İstanbul and Dubai.