An e-commerce agency quote is not one price. It is a bundle of media management, creative work, feed operations, lifecycle execution, measurement, software, and decisions that may still belong to your team. Compare the headline fee before you normalize that bundle and the cheapest proposal can become the most expensive operating model.
This guide is for a DTC founder, growth lead, or finance partner comparing live proposals. It does not publish a universal market average. Search results for this query currently show extremely broad ranges, but the pages often define "agency" differently and rarely expose an independent dataset. The more reliable buying question is: what total monthly commitment buys which decisions, deliverables, access rights, and evidence?
The short answer: compare total cost against a defined operating job
To compare e-commerce marketing agency pricing, first put every proposal into the same cost stack: agency fee, media spend, creative production, software and data, implementation projects, and the internal labor the brand must still provide. Then map the work by owner, deliverable, approval right, and success evidence. Only after that should you compare a retainer, percentage of spend, project fee, performance-linked fee, or hybrid.
A higher fee can be the better commercial choice when it replaces a real capability gap and produces usable evidence. A lower fee can be rational when the job is narrow and the brand already owns creative, merchandising, analytics, and approvals. Price without scope is not a purchasing signal.
Sharply Labs currently publishes its own starting commercial context rather than presenting a market average: DTC retainers are listed at $5,000–$15,000 per month plus ad spend, depending on revenue stage, channel mix, and creative volume, with a 90-day minimum. That is a first-party Sharply Labs offer statement, not evidence that another agency should charge the same amount or that a brand should spend inside that range.
Build the six-part cost stack
Use one worksheet for every proposal. Record costs before discounts, bonuses, or performance clauses.
Cost layer What belongs here Question that prevents a surprise --- --- --- Agency fee Retainer, spend percentage, project fee, or base fee What exact work and seniority does this buy? Media Google, Meta, TikTok, marketplaces, retail media, or other placements Is media paid directly by the brand, and is tax included? Creative production Concepts, copy, design, editing, creator fees, usage rights, photography How many net-new concepts and finished assets are included? Software and data Attribution, feed tools, reporting, experimentation, email/SMS, landing-page tools Which subscriptions are required, optional, marked up, or client-owned? Projects and pass-throughs Tracking implementation, feed repair, landing pages, migrations, travel, translation What triggers a separate statement of work? Internal brand labor Approvals, merchandising, inventory, claims, finance, data, engineering Which named owner must respond, and by when?
The total operating commitment is:
agency fee + media + production + software/data + project costs + internal labor
That formula is deliberately broader than "agency cost." An ads-only retainer may require a brand to fund a separate creative pipeline. A full-service proposal may include creative direction but exclude shoots, creator licensing, or landing-page development. A performance fee may appear variable while requiring a larger fixed measurement stack.
Do not force internal labor into a fake hourly number if finance cannot support one. Record the roles and expected cadence instead. The purpose is to expose dependencies, not manufacture precision.
Normalize scope into operating workstreams
The phrase "full service" is not a scope. Break the work into the decisions an e-commerce growth system actually needs.
Paid media
Record each platform, market, account, campaign type, and budget boundary. Separate strategy from trafficking, optimization, reporting, and experimentation. Ask who approves budget changes and who can pause spend when inventory, margin, or the site changes.
Product feed and commerce operations
For Google Shopping and marketplace work, define who owns product data quality, disapprovals, price and availability mismatches, promotions, and landing-page continuity. Google Merchant Center provides different access levels, including admin, standard, read-only, and performance access; those permissions should follow the work, not default to maximum access (Google Merchant Center Help). Platform roles establish what a user can do. They do not define your agency's contractual responsibility.
Creative system
Separate creative strategy, concepts, scripts, production, editing, resizing, creator sourcing, usage rights, and localization. "Creative included" is incomplete until the proposal states the unit: a concept, a shoot, a source file, a finished ad, or a platform variation.
A useful production line has four fields:
net-new concepts per cycle;
executions or variants per concept;
revision and approval rules;
usage, source-file, and creator-rights ownership.
Counting exports without counting concepts can make a large volume promise look more strategic than it is. Conversely, a narrow media scope is not deficient if the brand already has a strong internal creative team.
Lifecycle and retention
List email, SMS, segmentation, campaigns, flows, deliverability, offer governance, and subscription work separately. Clarify whether platform fees, message charges, copy, design, and implementation are inside the proposal. The acquisition agency should not receive automatic credit for all returning-customer revenue merely because its dashboard can display it.
Store and conversion work
Distinguish analysis from implementation. An agency may identify a product-page problem but not design, develop, or QA the change. Record whether the scope includes research, wireframes, copy, design, development, experimentation, and post-test interpretation.
Measurement and finance reconciliation
Name the reporting layers: platform reporting, analytics, store orders, refunds, discounts, payment fees, product cost, shipping support, and customer cohorts. The proposal should say who defines a new customer, which margin definition authorizes spend, and how discrepancies are handled. Use the contribution-margin framework and blended CAC versus platform CPA guide to establish those definitions before attaching a bonus to them.
Compare the five fee structures by incentive
No fee model is universally best. The right structure makes the required work legible and does not pay for a result the agency cannot independently control.
Fee structure Useful when Main diligence question Common mismatch --- --- --- --- Fixed project The output and acceptance criteria can be bounded What marks the project complete? Ongoing optimization is assumed but not priced Monthly retainer The work recurs and capacity must remain available What cadence, team, and deliverables are reserved? Vague access to a team replaces defined work Percentage of media spend Workload genuinely changes with managed spend or account complexity What fee changes at each spend band, and what does not? The fee rises when spend rises even if the operating job stays similar Performance-linked Both sides can define a controllable, auditable outcome What baseline, exclusions, attribution, refunds, and reset rules apply? A noisy or platform-reported metric becomes the compensation truth Hybrid A stable base job exists and a narrow variable component is defensible Which work is covered by the base, and what exact event earns the variable fee? The same activity is paid through both the base and the bonus
A spend-based fee is not automatically misaligned. More spend can add markets, campaigns, creative throughput, reporting, and operational risk. The contract should show that relationship rather than assuming it. A retainer is not automatically aligned either; it can hide an underspecified service. A performance fee does not remove risk. It moves the argument to metric definitions, baselines, exclusions, and influence.
Use a proposal-normalization sheet
Give every bidder the same columns. Do not ask each agency to redesign its proposal; translate the answers into your own format.
Field Proposal A Proposal B Decision note --- --- --- --- Base fee and billing period Normalize monthly and one-time costs Variable fee Write the exact formula and cap Media paid by brand Keep ad spend separate from fees Included workstreams Name platforms, markets, and functions Creative unit Concepts, executions, rights, revisions Named team and seniority Separate sales team from delivery team Brand dependencies Approvals, data, product, engineering Software and pass-throughs Include markups and cancellation terms Account and data ownership Brand admin, partner access, export rights Measurement truth Platform, analytics, store, finance Exit and handover Notice, source files, history, credentials First 30-day deliverables Evidence of shipped work, not outcome promises
The final column matters most. It turns a vendor comparison into a management decision. If Proposal A includes media and reporting while Proposal B includes media, feed operations, and creative production, the fees should not be compared until the missing work is priced or intentionally kept in-house.
A worked example: equal retainers, unequal commitments
Consider two fictional proposals with the same $8,000 monthly fee. This is an example, not a benchmark.
Proposal A covers Meta and Google campaign management, weekly reporting, and quarterly strategy. The brand supplies all creative, product-feed repair, analytics implementation, and landing-page work.
Proposal B covers the same channels plus feed monitoring, four net-new creative concepts with defined executions, monthly contribution-margin reconciliation, and one bounded landing-page experiment. Creator fees and development remain separate.
The fees are equal, but Proposal B is only the better value if the brand needs those capabilities, the units are credible, and the agency can execute them. If the brand already has a high-performing creative team and a commerce operator, Proposal A may be the cleaner purchase. If those internal owners do not exist, Proposal A's real cost includes hiring or contracting the missing work.
Now change Proposal B to a $6,000 base plus 5% of attributed revenue. It is no longer obviously cheaper or more aligned. The buyer must define attributed revenue, returning-customer treatment, discounts, refunds, cancellation lag, channel overlap, view-through credit, and whether the bonus can exceed a cap. If those terms cannot be reconciled, the variable structure is not decision-ready.
Put contribution economics above the fee
An agency fee should be evaluated against the commercial system, not against gross revenue or a platform ROAS screenshot alone. Start with a contribution view that finance accepts. A simplified form is:
contribution after marketing = net revenue − variable product and fulfillment costs − media − variable agency fees
The full definition can also include payment fees, returns, discounts, support, and other costs relevant to the business. Keep the definition consistent across proposals. The agency does not need access to every finance field, but the decision owner needs enough information to set a spending boundary.
Three checks are useful:
Fee load: What share of the controllable contribution pool is consumed by fixed and variable agency fees before new media is added?
Break-even requirement: What incremental contribution would be required to cover the engagement, without assuming that all observed revenue is incremental?
Capacity test: Can the brand supply the inventory, creative approvals, offer decisions, engineering, and measurement inputs the proposal assumes?
These are planning checks, not forecasts. Do not convert them into a promised CAC reduction or revenue lift. For the reporting layer above channel dashboards, use the MER versus ROAS framework.
Keep the brand in control of accounts and data
Commercial terms and access design should agree. A brand should maintain durable administrative access to the store, ad accounts, product feeds, analytics, creative source files, and historical reporting needed after the relationship ends.
Shopify's collaborator model lets a merchant manage and remove partner access, assign required permissions, and prevents transfer of store ownership to a collaborator (Shopify Help Center). Shopify also states that asking a merchant for its password or using merchant credentials is prohibited; partners should use collaborator or appropriate staff access (Shopify Help Center).
Google Ads manager accounts can link to existing client accounts while the original client account and history remain intact. Linking does not grant administrative ownership by default (Google Ads Help). Google also distinguishes manager ownership from data ownership and says a client account can unlink an owner manager (Google Ads Help). Those platform mechanics support a buyer-side rule: grant the minimum access needed, keep a brand-controlled administrator, and document the offboarding path before work begins.
The contract should answer:
Who owns every account and who holds administrator rights?
Which agency users or manager accounts receive access?
Which source files, dashboards, taxonomies, audiences, and experiment records transfer at exit?
Which software subscriptions are brand-owned versus agency-provided?
How quickly will access be removed or transferred after termination?
What happens to creator usage rights and unfinished production?
Platform permissions do not replace contractual review. Jurisdiction, privacy obligations, customer data, and licensing may require legal or security review beyond this article.
Define the first 30 days before signing
A buyer cannot responsibly demand a business result in 30 days across every commerce context. It can demand evidence of an operating system being built.
A credible first-month plan might include:
confirmed account, feed, store, and analytics access;
agreed new-customer, contribution, and reporting definitions;
an inventory and offer constraint map;
campaign and creative diagnostics;
a prioritized backlog with owners and evidence gaps;
the first bounded changes or tests shipped;
a decision log showing what changed and why.
These deliverables reveal whether the agency can turn access into decisions. They do not prove incremental revenue, and the contract should not pretend otherwise.
Questions to ask about exclusions and change control
Most fee disputes begin in the blank space around the scope. Ask these questions before procurement reaches the final redline:
What is explicitly excluded from the monthly fee?
What volume, market, catalog, or channel change triggers repricing?
Are meetings, dashboards, and strategy documents deliverables or coordination overhead?
What constitutes an urgent request, and who authorizes it?
How are unused production capacity and rollover handled?
Are third-party costs passed through at cost or marked up?
Does the agency receive platform rebates, referral fees, or reseller margin?
How are taxes, currency changes, refunds, and credits treated?
What notice period, minimum term, renewal, and termination rights apply?
Which work can continue during a measurement outage or platform restriction?
The purpose is not to make the relationship adversarial. Clear exclusions protect both sides from treating every useful idea as included work.
When each model is likely to fit
Choose a project when the deliverable can be accepted: an audit, measurement design, feed repair, or launch plan. Do not use a project fee to imply ongoing management.
Choose a retainer when the brand needs recurring cross-functional capacity and decisions. Specify the operating cadence and capacity boundary.
Choose a spend-based structure when managed spend is a credible proxy for workload or risk, and use bands or caps so the relationship is visible.
Choose a performance-linked component only when the metric, baseline, attribution, exclusions, data access, dispute process, and cap can be written before launch. Keep the base work funded so the agency is not rewarded for gaming a short-term proxy.
Choose a hybrid when the brand retains critical commercial ownership and the agency fills defined execution gaps. Our agency-versus-in-house framework helps decide that operating boundary before price negotiation.
When an agency is not the next purchase
An agency may be premature when the business cannot keep products in stock, has not defined margin, cannot approve work, lacks a reliable store and checkout, or expects media to establish product-market fit. It may also be the wrong structure when one continuous internal job dominates the need and a qualified hire can remain fully occupied.
Do not sign a broad engagement to avoid making a narrower decision. A diagnostic project, specialist contractor, internal hire, or deliberate pause may be better when the constraint is specific. Conversely, do not under-scope a multi-system problem into one channel simply because one-channel management has the lowest fee.
A procurement scorecard that keeps price in context
Score each proposal on evidence, not presentation. A practical weighting can cover problem understanding, scope completeness, named team capability, creative capacity, measurement reconciliation, account control, exit readiness, total operating commitment, and fee-model downside. Set the weights before final presentations. A team with an urgent creative bottleneck should weight production differently from a team with a feed and measurement problem. Do not create a universal score.
The practical next step
Take the last two proposals you received and rebuild them in the same six-part cost stack. Mark every missing owner, unit, exclusion, access right, and measurement definition. Then ask each agency to correct only the factual gaps in your normalization sheet. The comparison will usually become clearer before either bidder changes its price.
If you are an established Shopify, headless, or marketplace brand with active acquisition and a proposal that is difficult to compare, Sharply Labs' e-commerce growth team can review the scope, account access, creative system, measurement definitions, and contribution constraints. You receive a prioritized keep, clarify, remove, or separately scope decision map. This is not a promise of lower fees, lower CAC, higher MER, or improved revenue.
Sources and methodology
This guide combines a buyer-side proposal-normalization framework with current first-party platform documentation. The public Sharply Labs pricing statement is cited only as Sharply Labs' own current offer context, not as a market benchmark. Live search results were reviewed qualitatively on October 27, 2026; because the displayed ranges were produced mainly by agencies and aggregators using inconsistent scopes, no universal range is repeated here. Search Console, qualified-conversion data, Semrush, and Ahrefs were unavailable for this analysis.
E-commerce & DTC growth — Sharply Labs; current first-party service scope and published retainer context.
Collaborator accounts — Shopify Help Center; merchant-controlled collaborator permissions and removal.
Working on client stores — Shopify Help Center; recommended client-store access paths and credential prohibition.
About linking accounts to your manager account — Google Ads Help; existing-account linking, history continuity, and default ownership limits.
About ownership of client accounts — Google Ads Help; owner-manager rights and client unlinking.
Manage people and access levels in Merchant Center — Google Merchant Center Help; role and permission distinctions.