How to Choose an Ecommerce PPC Agency

An ecommerce PPC agency manages Shopping, search, remarketing and often marketplace advertising for an online store, with the core job being to grow revenue at a sustainable return on ad spend rather than simply generating clicks or impressions. Because ecommerce performance is directly measurable in revenue terms, this is one of the clearer verticals in which to hold an agency accountable to specific, verifiable results.

Store owners evaluating agencies in this space should expect to see clear reporting on revenue and ROAS from the first conversation, not just projected click volume or impressions. An agency that leads with vanity metrics rather than revenue-based reporting is a sign their process may not be built around what actually matters to a store’s bottom line.

It is also worth understanding upfront whether an agency’s typical client looks like your store.

Ecommerce PPC Services to Look For

• Shopping feed management. Ongoing feed optimization, not a one-time setup, since product catalogs and pricing change regularly.
• Marketplace advertising. Direct experience running campaigns on platforms such as Amazon alongside a store’s own site traffic.
• Creative and remarketing. Ad creative built for the buying stage, paired with remarketing to recover shoppers who did not convert on their first visit.
• New customer acquisition tracking. Reporting that separates new customer revenue from repeat customer revenue, not a single blended ROAS figure.

It is also worth asking whether the agency has experience with your specific platform, whether that is Shopify, WooCommerce, Magento, or a custom build, since feed setup and conversion tracking implementation can vary meaningfully between platforms.

Category and catalog size matter here too. A store with a few dozen SKUs has different feed management needs than a store with tens of thousands of products, and an agency’s process should scale appropriately to your catalog size rather than applying a one-size approach regardless of store scale.

Amazon PPC Consultant vs Agency

Stores selling on Amazon often face a choice between a dedicated Amazon PPC consultant and a full-service agency covering Amazon alongside Google Shopping, search, and remarketing. A specialist consultant can bring deeper Amazon-specific expertise, while a full-service agency offers a more unified view across channels, which matters when budget needs to shift toward whichever channel is performing best. Neither option is inherently better; the right choice depends on how much of total revenue runs through Amazon versus the store’s own site.

Stores in the early stages of testing Amazon as a channel sometimes start with a specialist consultant to establish a baseline, then move to a full-service agency once Amazon becomes a meaningful and ongoing share of revenue that needs to be managed alongside the rest of the account.

Whichever route a store takes, it is worth confirming how budget decisions get made when Amazon and site-based channels are competing for the same limited marketing spend, since a fragmented approach across two separate providers can lead to inefficient allocation if there is no shared view of overall return.

Ecommerce PPC Agency Pricing

Pricing in this vertical commonly follows either a percentage of ad spend or a flat fee, with percentage models more common at lower spend levels and flat fees becoming more attractive as spend scales, since a flat fee does not increase automatically alongside growing budget. Store size and channel complexity both factor into which model makes more sense. See the PPC agency pricing guide for more detail.

Some agencies also charge separately for feed management or creative production, so it is worth clarifying upfront exactly what is included in the base management fee versus what would come as an additional cost as the account grows.

Questions to Ask Before You Hire

Beyond certifications and reporting cadence, ask specifically what a store should expect in the first ninety days, since ecommerce accounts often need a data collection period before optimization can meaningfully improve ROAS. The questions to ask a PPC agency guide covers this in more depth, and the piece on rookie PPC mistakes is worth a read too, so you know what a strong agency should be avoiding from day one.

It is also worth asking how the agency plans for peak shopping periods, since a store’s biggest revenue opportunities of the year often come during a handful of high-competition weeks, and an agency without a clear seasonal plan can leave meaningful revenue on the table during exactly the windows that matter most.

What to Expect After You Hire

A responsible ecommerce PPC agency typically opens with an audit of the existing feed, tracking setup, and account structure before making changes, followed by a rebuild phase where needed, then a period of active testing to establish a reliable ROAS baseline by product category. Stores should expect meaningful optimization gains to build gradually over the first two to three months rather than arriving all at once.

How a Matching Service Helps You Find the Right Fit

Comparing ecommerce PPC agencies means checking platform experience, marketplace capability, and pricing structure across every option on your list, which adds up fast when you would rather be running the store. PPC Agency Guide matches stores with vetted PPC agencies based on platform, catalog size and budget, so the agencies you talk to already fit what your store needs. The consultation is free, with no obligation to move forward.

Find an Ecommerce PPC Agency for Your Store

Proven, verifiable ROAS across the specific channels your store depends on is the clearest signal of fit. Store owners who ask for that evidence upfront, rather than taking general ecommerce experience at face value, tend to end up with a partner who can actually move the revenue needle. Request a consultation to get matched with an ecommerce PPC specialist.