Vita4you.

Vita4you had already used Shopping Ads for campaigns targeting international markets and knew first-hand that it is a high-leverage format — when the account is ready for it, Shopping Ads can contribute a material share of revenue with strong CPC economics. When Google Shopping Ads finally opened in Greece, Vita4you was one of the very few projects granted early access before the official release.

Early access created both an opportunity and a constraint. The opportunity: first-mover advantage in a new ad format the Greek market had not seen yet, in a category (pharmacy and health) where search intent is high. The constraint: the launch had to run from day one — not fine-tuned over weeks — because the competitive window would close fast as other advertisers came online.

The preparation phase was tighter than a typical Shopping launch. The ad account needed a structure that could serve many different search categories well, each with its own ROAS target. The product feed had to be clean, attribute-rich, and compliant with Google's pharmacy category rules. And the campaigns had to start optimizing toward target ROAS within weeks, not months — which meant human-only optimization was out.

We built the Shopping account around the insight that different product categories have structurally different ROAS potential. A premium supplement brand can sustain a higher cost-per-click than a generic over-the-counter product; a long-tail niche item tolerates different efficiency from a flagship. Bundling them into a single Shopping campaign averages away that variance and forces a compromise target.

Instead, the structure segments products by a combination of category × expected ROAS band × margin, with each segment getting its own Shopping campaign and its own target ROAS. Bidding pressure scales with the segment's genuine profitability, not an account-level average. The Merchant Center feed carries custom labels that drive segment membership, so feed-level attribute changes propagate automatically into bidding behavior.

On top of the structure, Google Ads scripts optimize traffic flow on an hourly cadence. The scripts monitor impression share, click share, CPC drift, and conversion efficiency per segment, then adjust bids and budgets to push the account toward its segment-level ROAS targets. Human-only optimization at this frequency is impossible; script-driven it is routine.