Choose an ecommerce PPC agency by the decisions it can explain about your store: which products deserve ad spend, what counts as a sale, and when a campaign should stop. At Kadima Digital, we recommend starting with those questions before comparing fees. A large advertising budget cannot make an unprofitable order worthwhile.
A useful proposal connects campaign management to your catalog and checkout. It gives you a way to judge the work before committing to a long engagement. Use the questions below to prepare that brief and compare the actual scope offered for your business.
What should an ecommerce PPC agency manage?
An ecommerce PPC agency should have a written scope covering the advertising channels it manages, the conversion data it uses and the decisions it can make. Your agreement also needs an owner for product-data problems and landing-page changes. Confirm those responsibilities before assuming that ad management includes website development or creative production.
Start with the channel where you need help. A store selling through its own checkout has different reporting and operational needs from a marketplace seller. If both matter, keep their order records and costs identifiable. Combining them too early can hide a weak channel behind a strong one.
Our PPC campaign management sits alongside SEO and lead-generation services. That gives us a reason to examine what happens after an ad click. Ask us to specify which campaign and website tasks belong in your engagement, which require your own staff and which would need a separate scope.
For example, someone must deal with a product that becomes unavailable during a promotion. The advertising contact needs a reliable stock signal. The store contact needs responsibility for the product page. Agree who makes the change and how the other person will know it happened.

How should your margins affect the advertising budget?
Set an acquisition-cost limit from the money an order leaves after the costs you choose to include. Product cost, fulfillment and payment fees can change that amount. Returns and discounts matter too. Give the agency those assumptions explicitly so its revenue target does not quietly become a different definition of profit.
ROAS means revenue attributed to advertising divided by ad spend. It describes a relationship between revenue and advertising cost. It does not deduct every cost of running the store. A campaign can report a positive ROAS while leaving too little to pay for the goods and the rest of the business.
Separate product groups when their economics differ. A large item with expensive shipping may need a different spending limit from a small repeat-purchase item. Review bundles using their actual contents and discount. A catalog-wide average can conceal those differences.
Decide how you will treat returning customers. If you plan to recover an acquisition cost through future orders, use evidence from your own customer records and state the time period. Keep the first-order result visible alongside that projection. An expected repeat purchase is not money already received.
What must be checked before you trust the sales report?
Confirm what the campaign calls a conversion and compare a sample with completed orders in the store. Identify any duplicated events or incomplete purchases counted as sales. Record how refunds and cancellations enter the report. Until those definitions are clear, a lower cost per conversion may describe a measurement change instead of improved trading.
Ask the agency to walk through a real order record with your staff. The relevant questions are whether the purchase happened, which amount was recorded and which advertising report includes it. Remove personal customer details from any demonstration shared outside the people who need access.
Advertising platforms can attribute the same sale differently. Before comparing reports, write down their attribution settings and reporting periods. Keep store revenue available as a separate reference. Adding every platform’s reported revenue together can count a shared sale more than once.
Record tracking changes beside the campaign results. If the conversion definition changes during a month, show the dates and explain the comparison limit. We recommend resolving an unexplained jump in counted purchases before using it to justify a larger budget.
What should the agency check in your product data?
Check that the advertised product matches the destination page in identity, price and availability. Assign responsibility for correcting mismatches and monitoring updates. Review variants separately where size or color affects stock. A shopper who clicks an available item needs to arrive at the same item with an understandable route to purchase.
Google Search Central recommends sharing ecommerce data through product structured data and Merchant Center feeds. Its product-data guidance also explains that update delays can leave stock or prices inconsistent across systems. Ask how the proposed agency will notice a mismatch and who will correct the original record.
Start with a small sample of important products. Open the ad destination and check the selected variant through to checkout. Include an item on promotion and an item with limited stock. Keep a short record of the exact mismatch so a developer or merchandising colleague can reproduce it.
Structured data has a separate role in search presentation. Google’s Product structured-data documentation describes supported product appearances. Adding that markup does not establish a paid-campaign result. Check the underlying product information first, then assess each channel using its own evidence.
What can a published case study tell you?
A case study can show the work an agency reports and the measurements it chose. Read the starting conditions and comparison periods before treating a percentage as a useful benchmark. Ask which changes occurred together and whether the result concerns purchases, leads or another event. Your store needs its own baseline.
Our published ecommerce Google Ads case study compares January with May. It reports purchases increasing from 3 to 18 while ad spend changed from $1,120 to $1,100. The work included keyword changes, revised ad copy and audience targeting, alongside conversion tracking and monitoring.
Those are figures reported in our case study, not a forecast for your account. The comparison does not isolate the effect of one change or show that every product became profitable. Its useful lesson for a buying decision is to request the campaign changes and the underlying measurement definitions together.
Apply the same reading standard to any example you receive. If only a percentage appears, ask for the starting value and the event counted. If a revenue figure appears, ask which costs sit outside it. If the period crosses a promotion, ask how that affected the comparison.
How should PPC and the website work together?
The landing page should answer the question raised by the ad and let the shopper confirm the product before buying. Agree who can edit that page and how changes will be reviewed. Keep product facts consistent across paid and organic routes while measuring the performance of those routes separately.
Read the ad and the destination page together. An ad about a particular size should reach that size or make selection clear. A promotion needs visible terms. Shipping information should be accessible before the customer has invested time in checkout. These are specific checks you can assign and verify.
Our ecommerce SEO guidance addresses the organic side of product discovery. A product page can support that work and paid traffic, but a shared page does not make the measurements interchangeable. An organic click, a paid click and an attributed purchase are different records.
Keep a dated change log for the page. If the store changes its offer while the agency changes targeting, both belong beside the results. That record helps the next review distinguish a campaign decision from a change in what the customer could buy.
What should you agree before the agency starts?
Agree account access, spending authority and the first reporting date before work begins. Name the people responsible for campaign decisions and store changes. Put the included work and any additional charges in writing. You also need a handover plan so the business can retain access to its accounts and records.
Ask who will make daily changes and who covers an absence. Set a route for urgent stock or checkout problems. A routine reporting meeting can wait until its scheduled date; an unavailable product spending through a promotion needs an agreed response.
For fees, compare the complete scope. A management fee may exclude creative work, feed development or a landing-page build. Ask how charges change when you add a channel or increase spend. The useful comparison is the work and accountability included in your proposal.
Before a seasonal promotion, share the stock plan and spending ceiling. Decide which changes need approval during the sale and how the campaign will end. Keep the final report tied to the same dates, products and cost assumptions used in the brief.
Questions before hiring an ecommerce PPC agency
Can a small store work with an ecommerce PPC agency?
Yes, if the agreed work and fees fit the store’s budget and needs. Start with the channel and product group where you need a specific decision. Ask what can be measured at your current sales volume and how the agency will handle uncertainty before you commit to a larger scope.
How often should the agency report?
Choose a reporting schedule that lets you make the decisions required by your store. Agree the metrics and comparison period in advance. Also establish a separate way to report urgent problems, such as broken checkout or unavailable products, so those issues do not wait for the next routine meeting.
Should an agency guarantee a sales result?
A sales forecast depends on assumptions about demand, the offer and campaign performance. Ask for those assumptions and the evidence behind them. A proposal should explain the work, spending limits and measures of progress. Treat a projected result as a scenario to assess, not as a sale already secured.
What should you bring to the first call?
Bring the catalog, the channels you use and the question you need answered. Prepare recent order and spend records with customer details removed. If you already know the problem, such as high returns or an unreliable purchase event, state it clearly so the discussion starts with that specific issue.
To discuss your store with Kadima Digital, arrange a PPC review and describe the campaign decision you need help making. We can then discuss the scope against your catalog, available data and budget.
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