Google Search Ads: The Agency Delivery Playbook

How do agencies deliver Google Search Ads that actually convert for clients?

The margin isn't in the obvious keyword campaigns every account already runs — it's in the underused formats (dynamic search, Shopping, and dynamic retargeting) paired with closed-loop reporting that proves the channel paid off. Most agencies can stand up a basic Search campaign for a client in an afternoon. The ones that keep the retainer are the ones who can show, inside the client's own CRM, that paid search drove revenue and not just clicks.

This is the delivery playbook we use when we run Google Ads as a white-label partner for other agencies — the formats worth packaging, when to reach for each, and how to report on them so a client renews.

The three ad types every client account starts with

Every Google Ads engagement begins with the same three building blocks. Scope which ones a client actually needs before you promise a campaign structure.

Ad type	What it targets	Best fit for clients who…
Search ads	Keywords and phrases people type into Google	Have clear commercial intent to capture and a defined set of money keywords
Display ads	Sites across the Google Display Network, YouTube, and the Partner Network (via AdSense)	Need reach and awareness; want to seed audiences for later retargeting
Remarketing	People who already visited the client's site	Have existing traffic and a considered purchase or long sales cycle

Search is where intent lives, so it's usually where a new client's budget starts. Display and remarketing earn their place once there's enough site traffic to build audiences from. For clients running video, our breakdown of YouTube video ads covers where that spend fits alongside the Display Network.

The underused formats where agencies win margin

Two formats consistently outperform and are consistently under-scoped: dynamic search ads (DSAs) and Google Shopping ads. Both trade manual keyword building for feeding Google better inputs, which is exactly the kind of setup-once, monitor-continuously work that packages cleanly into a retainer.

Dynamic search ads generate headlines and landing-page targeting straight from the client's own site structure and content. That makes DSA delivery downstream of the client's SEO and content strategy: if Google can crawl a well-organized site and find valuable pages, it improves both organic rankings and the reach of your paid campaigns. When we onboard a client with a thin or messy site, DSAs underperform — so the honest scoping answer is that DSAs aren't right for every account, but when they fit, they fit exceptionally well.

Google Shopping ads are the move for any client with a real product catalog — not just a handful of SKUs. Setup requires building a properly formatted product feed so Google can match specific product pages to specific queries. Each ad then carries a product image, URL, description, price, and attributes like color and size — the format that lets a small retailer show up the way Amazon and Walmart do. The feed is the deliverable clients rarely build themselves, which makes it a natural line item to own on their behalf.

Dynamic search and Shopping ads for ecommerce clients

For ecommerce clients, a clean product feed plus DSAs is the highest-leverage combination you can deliver. Letting Google pick the best ad for each query off a properly formatted feed can lift conversion rates by 10–25% — the difference between a store that looks too small to compete and one that shows up next to the category leaders.

The lever behind that number is data quality, not ad spend. The cleaner the client's catalog and product content, the better Google's matching, and the more of the work becomes a repeatable setup you can systematize across accounts. When a client's store runs on native HubSpot ecommerce rather than a duct-taped stack, the product data and order events live in the same portal you report from — which makes feed maintenance and conversion tracking dramatically less brittle to hand off between agency and client.

Dynamic retargeting for retail clients with growing catalogs

Dynamic retargeting is what you reach for when a retail client has more than a handful of products but only one generic set of branded retargeting banners. That mismatch is the tell that they're leaving conversions on the table.

Dynamic retargeting shows a returning visitor the specific product they already looked at, served across the Google Display Network — not the same branded banner following them everywhere. A shopper who bounced from a product page is far more likely to convert on an ad for that exact product than on a brand impression. For clients with real catalogs, packaging dynamic retargeting as an add-on to their Shopping setup is one of the easier upsells to justify, because the performance gap is visible in the numbers.

Retargeting also intersects with tracking setup on the client's site; if you're auditing a retail client's pixels before layering this on, our guide to Facebook pixels for ecommerce sites covers the same discipline for paid social.

The delivery workflow: monitor, don't set-and-forget

The part that separates a managed Google Ads retainer from a one-time setup is continuous review of what queries are actually triggering ads. This is where the real optimization — and the real client-facing story — lives.

On one client account, we found that over half of the top-performing search terms were Oscar-trophy queries — a seasonal spike we'd have completely missed without regular review of the Search Terms Report. That kind of finding is invisible in a set-and-forget account, and it's exactly the sort of insight that, brought to a client proactively, renews a contract. Build a recurring Search Terms review into your delivery cadence and treat it as a reporting moment, not just a housekeeping task.

Proving the channel: closed-loop reporting in HubSpot

Clients don't renew paid search because clicks went up — they renew because they can see revenue. The delivery detail that makes that possible is closing the loop between Google Ads and the client's CRM.

In our experience, success requires a clear understanding of the client's KPIs and a dedicated sales-team contact on their side. That contact is what enables collaborative reporting on conversion quality from Google Ads within HubSpot, creating a fully closed-loop view of performance rather than a dashboard of vanity metrics. Without a named counterpart who can tell you which leads actually became customers, you're optimizing blind.

Attribution model choice matters here too. On one ecommerce client, almost half of all conversions were initiated by paid search under a first-interaction model — a channel that looked like it was underperforming under last-interaction attribution. If you report a client's paid search on last-click alone, you can end up recommending they cut the exact channel that's filling the top of their funnel. Setting the attribution conversation up front, and reporting it inside the client's portal, protects both the budget and the renewal.

Packaging the work and when to bring in a partner

Google Ads delivery packages naturally into escalating engagement models: pay-per-task for a one-off feed build or audit, a white-label retainer for ongoing management and reporting, and reserved capacity when a client's paid program is large enough to warrant dedicated hours. Match the model to the client's maturity — a new store needs setup and coaching, an established one needs continuous optimization and closed-loop reporting.

Whatever the model, formalizing it in a service-level agreement pays off. Agencies that put SLAs in place with clients see a 36% increase in customer retention, per Search Engine Land's November 2023 reporting — a strong argument for scoping Google Ads work as a defined, measurable commitment rather than a vague "we'll run some ads" arrangement.

When paid search sits outside your team's core competency — or when it arrives in a wave of new client demand you can't staff quickly — this is the work to hand to a white-label partner. As a Diamond HubSpot Solutions Partner (top 3% globally) with 17+ years as an agency, we deliver Google Ads and PPC management under your brand, wired into your clients' portals for the closed-loop reporting that keeps them renewing. You keep the relationship; we do the feed builds, the Search Terms reviews, and the reporting behind the scenes.