OC Systems Agency
Complete Commerce

Three channels. One accountable growth team.

You build the product. We run the sales engine.

You handle product, inventory and brand vision. We handle the systems that turn demand into sales — Amazon, Shopify and Google, run together by one team with one report and one person to call when the numbers move.

Build My Growth PlanSee all pricing

$3,500 per month, starting · flat fee, never a percentage of ad spend · no long-term contract

Three vendors, three reports, nobody accountable

The usual setup: an Amazon freelancer, a Google Ads agency, and whoever built the Shopify store two years ago. When sales drop, each one shows you a report proving it wasn't them. Each report is accurate.

The problems that actually cost the most sit between them. Ad spend pointed at a product page that loses the sale. A Merchant Center feed rejecting half the catalog while Search burns budget on the rest. An Amazon listing ranking well with photos nobody has updated since launch. A promotion that runs on the store and not on Amazon, so your own listing undercuts your own campaign.

One team sees all three. That is the entire argument, and the rest of this page is what it means in practice.

What we manage

Specific enough that you can check it against what your current vendors actually do.

Amazon

The ads and the account they run inside.

  • Sponsored Products, Sponsored Brands and Sponsored Display
  • Weekly search-term harvesting and negative keyword work
  • Bids set against your break-even, not a borrowed ACOS target
  • Listing SEO — titles, bullets, backend terms, images
  • A+ Content across the catalog and a Brand Store kept current
  • Catalog management, variations and Seller Central case handling
  • Account health, suppressions and stranded inventory
  • Promotions, coupons, and Brand Registry and hijack monitoring

Shopify

The store run as an operation, not a project.

  • Product publishing, variants, imagery and product copy
  • Collection merchandising ordered around what you want to sell
  • Product page optimisation against real buying questions
  • Conversion work prioritised by the pages with actual traffic
  • Shopify SEO — structure, schema, internal linking, speed
  • Promotions, bundles and seasonal campaigns built ahead of the date
  • Campaign landing pages instead of paid traffic on a collection page
  • Theme and app changes re-tested, including mobile checkout

Google

Measured properly first, then optimised.

  • Conversion tracking rebuilt and verified before any optimisation
  • Search structure, match types and negative keyword discipline
  • Google Shopping and Merchant Center feed management
  • Performance Max with brand exclusions and asset control
  • Feed disapprovals cleared at the source in Shopify
  • Budget allocation across Search, Shopping and PMax
  • GA4 events and cross-channel attribution kept honest
  • Bidding managed against cost per sale, not impressions

Who does what

Most engagements go wrong at a boundary nobody wrote down. This is the boundary, written down before you sign anything.

You still handle

The decisions that carry your risk

  • →The product itself — what you make, its quality, and what comes next
  • →Inventory and supply: what you order, when, and how much of it
  • →Landed cost and floor pricing — we advise, you decide the number
  • →Brand vision, positioning and anything a customer would call taste
  • →Fulfilment and shipping, whether that is FBA, a 3PL or your own warehouse
  • →Customer service, returns decisions and anything requiring your judgement
  • →Approving the advertising budget, and paying it directly to Amazon and Google
  • →Photography and video source material, or the budget to commission it
  • →Final say on promotions, discounting and anything that touches margin

We handle

The systems that turn demand into sales

  • Every campaign across Amazon and Google — structure, bids, budgets, negatives
  • Listing and product page content on both Amazon and Shopify
  • Catalog, variations, collections and merchandising order
  • Merchant Center, product feeds and the disapprovals nobody else sees
  • Conversion tracking on all three channels, checked rather than assumed
  • Store maintenance: theme updates, apps, broken links, speed, mobile checkout
  • Seller Central case handling, account health and suppression fixes
  • Building the promotions and landing pages you approve
  • One monthly report covering all three channels, and one person to ask about it

Who this is for, and who it is not for

This fits if

  • You already sell — this is not a launch, it is an operation that needs running
  • Two or three channels live, or one live and another that should be
  • Advertising spend large enough that a structural mistake is expensive
  • Nobody in-house whose actual job is the channels, or one person doing all of it
  • The same catalog, pricing and promotion decisions repeating across channels
  • You want one number to call when sales move, in either direction

Don't buy this if

  • ✗You have no store and no Amazon presence yet — start with a build, not a retainer
  • ✗One channel is the whole business and it is already handled well by someone competent
  • ✗Total monthly ad spend is small enough that the management fee dwarfs it
  • ✗You want a percentage-of-spend deal, which we do not offer on purpose
  • ✗You need a guaranteed ACOS, ROAS or ranking, which nobody honest will give you
  • ✗What you actually need is one written audit and a plan you execute in-house

If you recognise yourself on the right, the smaller options further down this page are the better purchase, and we would rather point you at one of those than at this.

What a month actually looks like

Management is a cadence, not a burst of activity followed by silence. This is the cadence, so you can tell whether anything is happening in week three.

The monthly management cycle1Weekly: campaign work across Amazon and Google — bids,budgets, negatives, search terms2Weekly: store and listing queue — pages, content, catalog,merchandising3Weekly: health checks on tracking, feed status, account healthand suppressions4Mid-month: performance read across all three channels againstyour margin5Mid-month: the next promotion, landing page andinventory-driven priority6Month end: one report — what changed, what moved, what werecommend next7Monthly: a strategy call with the person who did the work, notan account manager

Reporting you can argue with

A report that claims credit for everything cannot be trusted about anything. Ours names what did not work, and says how confident we are that a change caused a result.

Revenue and spend by channel, side by side, on the same page
ACOS and TACOS on Amazon; ROAS and cost per sale on Google
What we changed this month, and why we changed it
What moved after those changes, and how confident we are that they caused it
What did not work, named rather than omitted
Feed, tracking and account health status on all three channels
Inventory and catalog issues that will become a problem next month
The prioritised queue for next month, biggest item first

Work out whether this is worth it, on your own numbers

We are not going to quote you an industry statistic, because the only figures that matter here are yours and you already have them. This takes about fifteen minutes.

  1. 1Add up everything you pay each month to every vendor, freelancer and app that touches Amazon, Shopify or Google.
  2. 2Estimate the hours you or someone on your team spends coordinating them, and price those hours at what that person's time is actually worth.
  3. 3List the last three problems that fell between two vendors. Write down how many days each took before somebody owned it.
  4. 4Now put your current total next to a flat fee starting at $3,500. If the comparison is close, or against us, take a smaller option — that is a real answer, not a negotiating position.
  5. 5Finally, check the fee against your monthly ad spend. If management costs a large fraction of what you spend on advertising, the money belongs in inventory or product instead.

The first thirty days

Measurement gets fixed before optimisation, every time. Improvements made on top of broken tracking cannot be proven and usually cannot be kept.

Week 1

Access, audit and baseline

Reporting access to Seller Central, Google Ads, Merchant Center, GA4 and Shopify. We audit all three channels and record the baseline before touching anything, so later arguments about what changed have an answer.

Week 2

Fix the measurement

Conversion tracking is rebuilt and verified, feed disapprovals cleared, and account health issues opened. Optimisation before this point is unmeasurable, so it does not happen before this point.

Week 3

Structural work

Campaign restructures where they are needed, the worst listings and product pages rewritten, catalog and collections brought current. We start where the money is, not where the work is easiest.

Week 4

Into the routine

First full report, first strategy call, and an agreed queue for the next ninety days. From here it is the monthly cycle, with the ninety-day plan revisited each quarter against what actually happened.

Why one team beats three disconnected agencies

Not because we are better at any single channel than a dedicated specialist. Sometimes we are not, and a large brand with real in-house coordination can get more from three deep specialists than from one team. If that is your situation, we will tell you.

The argument is about where the expensive failures live. They are rarely inside a channel, where a competent specialist catches them. They sit in the overlaps: the product page that ad spend lands on, the feed that decides what Shopping can show, the catalog change that breaks a listing, the promotion that runs in one place and not the other. Nobody owns an overlap.

There is a second cost that never appears on an invoice, which is your time. Three vendors means three calls, three reports in three formats, three sets of context to hold in your head, and an arbitration job every time two of them disagree. That job lands on the founder, and it is the one job on this page that cannot be delegated while the vendors stay separate.

One team, one report, one call. The overlaps become somebody's job, and the arbitration stops being yours.

Complete Commerce

$3,500/month, starting

Flat fee — never a percentage of ad spend, and no long-term contract. Ad spend is paid directly to Amazon and Google. The starting figure moves with catalog size and how much of the operation is already in place.

  • Amazon: PPC, listings, SEO, catalog, A+, Brand Store, account management
  • Shopify: store management, products, collections, landing pages, CRO
  • Google: Search, Shopping, Performance Max, Merchant Center
  • Conversion tracking and reporting across all three
  • One point of contact, one strategy, one report
Build My Growth Plan

If this is more than you need

Complete Commerce is the largest thing we sell, which is a reason to be careful about recommending it. These are the smaller purchases, and for a lot of brands one of them is the right answer.

Ads Only, Channel Management and Complete Commerce compared by price, scope and reporting
Ads OnlyChannel ManagementComplete Commerce
Starting price$750 per month$2,000 per month$3,500 per month
ChannelsAmazon PPC or Google Ads, one of themOne channel end to end: Amazon, or website and GoogleAmazon, Shopify and Google together
Beyond the adsNothing. You run the listings and the store.The listings, pages, catalog and daily work behind that channelAll of it, on all three, plus the overlaps between them
ReportingMonthly, on ACOS, TACOS or ROASMonthly report and strategy callOne report and one point of contact for everything
Best forAmazon PPC or Google Ads management. For brands whose sales infrastructure is already in place and working.One channel handled end to end — Amazon, or your website and Google. Advertising plus the listings, pages and day-to-day work behind it.Amazon, Shopify and Google run by one team. No coordinating three agencies who each blame the other two.

Free Growth Review

Free

We look at whatever you already run and name the two or three things costing you the most, including whether you need us at all.

Full PPC Audit

$495 one-time

A complete written audit of one ad account, ending in a 90-day plan you can hand to anyone — including a different agency.

Ads Only

$750 per month, starting

Amazon PPC or Google Ads, when the rest of your sales infrastructure is already in place and working.

Channel Management

$2,000 per month, starting

One channel end to end — Amazon, or your Shopify store and Google — when the third channel is not a real part of the business yet.

Further reading

All E-Commerce Management articles →

Frequently asked questions

What does the $3,500 actually cover, and what is not in it?
It covers the management of all three channels: every campaign on Amazon and Google, listings and A+ Content, the Brand Store, catalog and account health, the Shopify store and its product pages and collections, Merchant Center and feeds, conversion tracking, and the reporting across all of it. One team, one contact, one report. What it does not cover is money that goes to someone else. Ad spend is paid directly by you to Amazon and Google, never through us and never marked up. Your Shopify subscription and app subscriptions are yours. Photography, video production and paid tooling are quoted separately if you want us to arrange them. The figure starts at $3,500 and moves with catalog size, channel complexity and how much of the operation already exists in a workable state. A brand with forty SKUs and clean accounts is not the same job as one with nine hundred and no tracking.
What do we still have to do ourselves?
More than most agencies admit, and the list is worth reading before you hire anyone. You own the product, the inventory decisions and the money: what you make, what you order, when you reorder, your landed cost, and the floor price you will not go under. You own brand vision and anything a customer would recognise as taste. You handle fulfilment, customer service and returns decisions. You approve the ad budget and pay it directly. You supply photography and video source material, or the budget to commission it, because we cannot photograph a product we do not have. And you keep the final say on promotions and discounting, because those decisions hit your margin rather than ours. We advise on every one of these and we make the recommendation explicit, but the decision stays with you, which is the only arrangement that works when the inventory risk is yours.
Do we have to run all three channels to work with you?
No, and pushing a third channel onto a business that does not need one is a good way to waste both our time. Complete Commerce exists because catalog, pricing, promotion and imagery decisions repeat across Amazon, Shopify and Google, and splitting them across vendors means nobody sees the whole picture. That argument only holds when two or three channels are genuinely live. If Amazon is the entire business and the website is a brochure, Channel Management at $2,000 a month covers Amazon end to end and costs you less. If the store is the business and Amazon is an experiment, the same tier covers Shopify and Google. We would rather sell you the smaller tier now and add the third channel when it earns its place than start you on the flagship and have you quietly resent one third of the fee.
Why a flat fee instead of a percentage of ad spend?
Because percentage-of-spend pays us to spend more of your money, and there is no way to write that incentive out of the arrangement once it exists. Every difficult conversation gets contaminated by it. Should we cut this campaign, pause this product, or lower the budget in a slow month? Under a percentage model the honest answer costs us money, and you can never be quite sure which answer you are getting. A flat fee makes the recommendation cheap for us to give. It also means the fee stops being a surprise. You know what management costs in January and in November, which makes budgeting straightforward and makes a seasonal spend increase a decision about your business rather than a decision about our invoice. The fee reflects the work, and the work does not double because the budget did.
How is one team better than three specialists?
Sometimes it is not, and that deserves a straight answer. A large brand with real in-house coordination can absolutely get better results from three deep specialists than from one team covering three channels, and if that is your situation we will say so. The argument for one team is about where the problems actually live. In our experience the expensive failures are rarely inside a channel — they sit between channels, and between vendors. Ad spend pointed at a product page that loses the sale. A Merchant Center feed rejecting half the catalog while Search burns budget on the rest. An Amazon listing ranking well on photos nobody has updated since launch. Each specialist can show a report proving it was not them, and each report is accurate. One team removes the gap those problems live in, and removes the argument about whose problem it is.
How long is the contract, and what happens if we leave?
There is no long-term contract. It runs month to month, with thirty days' notice on either side, which is deliberate: a contract that keeps a client who wants to leave is a contract that lets us stop earning the fee. Everything we work in stays in your name from day one. Seller Central, Google Ads, Merchant Center, GA4, Search Console and Shopify are your accounts, and we work inside them as staff users rather than moving anything into ours. If you leave, you keep the campaigns, the campaign history, the listings, the A+ Content, the store, the theme, the tracking and the feeds, with no transfer process and no data held hostage. We will also do a handover call with whoever takes over, in-house or another agency, because a client who leaves cleanly is a client who might come back.
How will we know it is working?
By numbers you can check yourself, in a report that also names what did not work. Each month you get revenue and spend by channel side by side, ACOS and TACOS on Amazon, ROAS and cost per sale on Google, what we changed, what moved afterwards, and how confident we are that the change caused the movement. That last part matters. Seasonality, a competitor going out of stock and a price change all move the same numbers, so a report claiming credit for everything is a report that cannot be trusted about anything. What we will not do is promise a figure in advance. We do not guarantee an ACOS, a ROAS, a ranking or a revenue number, because none of them are ours to guarantee, and anyone quoting you one before seeing your account is quoting somebody else's.
Is there a size below which this does not make sense?
Yes, and the test is arithmetic rather than a revenue threshold we invented. Add up what you currently pay every vendor and freelancer touching these channels, then add an honest estimate of the hours you or someone on your team spends coordinating them, priced at what that person's time is worth. Then list the last three problems that fell between two vendors and how long each took to get owned. Compare that total against a flat $3,500 a month. If the comparison is close or against us, do not do this — take Channel Management, or the $495 written audit and run it in-house. The other honest signal is ad spend. When the management fee is large relative to what you are spending on advertising, you are buying coordination you do not yet need, and the money is better spent on inventory or on the product.

Last reviewed by the OC Systems Agency team.

Nothing on this page is a guarantee of an ACOS, ROAS, conversion rate, search ranking or revenue figure. Results depend on your product, pricing, margin, inventory position and competition, none of which we control. Monthly fees are flat management fees and exclude advertising spend, your Shopify and app subscriptions, and any production or tooling costs, all of which are billed to you directly.

Build my growth plan

Tell us what you sell, which channels are live, and roughly what a month looks like. We will come back with what we would run first across Amazon, Shopify and Google — and an honest read on whether all three are worth managing yet.

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