UK

United Kingdom · Sales · Mid-Level (2-5 years)

Online Marketplace Manager

Here is the whole job, in plain words. What it is, what you decide, how you're judged, how people get here and where they go next. Then the part no course gives you: twelve AI tutors who learn your work.

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As an Online Marketplace Manager, a good place to start on Advanced Prompt Engineering for Marketplace Copy is Using and Checking AI Tools in Daily Work, a free Future Fluency module at Level 3. You'd practise using everyday AI tools on real tasks from your own week, and checking what they produce before you use it.

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One email: what AI is changing in this job, the new skills it asks for, where it leads, and where to start free. With a link back here. Nothing else follows unless you confirm your address.

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  • Experience bandMid-Level (2-5 years)
  • Direct reportsNo direct reports
  • Reports toSenior Online Marketplace Manager
  • UK framework levelUsually a coordinator, or early in a professional job

Also advertised as Marketplace Specialist · E-commerce Channel Executive · Amazon Account Executive

Built on 43,079 real UK job descriptions we analysed · grounded in what real qualifications cover

Two short quizzes about you

1From this job to a course

The qualifications matched to this job

Pearson BTEC Level 4 Higher National Certificate in Marketing Management for England Pearson Education Ltd · Level 4 · covers 1 of 3 standards
OCNLR Level 4 Diploma in Digital Marketing OCN London · Level 4 · covers 1 of 3 standards
ATHE Level 4 Extended Diploma in Digital Marketing ATHE Ltd · Level 4 · covers 1 of 3 standards
City & Guilds Level 3 Diploma in Digital Marketing City & Guilds Limited · Level 3 · covers 1 of 3 standards
Gateway Qualifications Entry Level Certificate In Vocational Studies (Entry 3) Gateway Qualifications Limited · Entry Level · covers 1 of 3 standards
Gateway Qualifications Entry Level Extended Certificate in Vocational Studies (Entry 3) Gateway Qualifications Limited · Entry Level · covers 1 of 3 standards

Matched from the standards this job is measured against: a suggestion, not an official ruling.

The units you would start with

Managing Marketing and Digital Communications Pearson BTEC Level 4 Higher National Certificate in Marketing Management for England
Social Media Marketing OCNLR Level 4 Diploma in Digital Marketing
Content Marketing ATHE Level 4 Extended Diploma in Digital Marketing
Digital Marketing Gateway Qualifications Entry Level Certificate In Vocational Studies (Entry 3)

The future skills this job leans on

AI Fluency working with AI as a thinking partner
Data Fluency turning numbers into a decision
Your Plan Illustration

Built for Online Marketplace Manager

4 units that map to this job, from the qualifications that cover it.

  1. Managing Marketing and Digital Communications Pearson Education Ltd · covers 1 of 3 standards Level 4
  2. Social Media Marketing OCN London · covers 1 of 3 standards Level 4
  3. Content Marketing ATHE Ltd · covers 1 of 3 standards Level 4
  4. Digital Marketing Gateway Qualifications Limited · covers 1 of 3 standards Entry Level
These are the real units behind this job, in the order they rank for it. Nothing here is marked done, because this plan has not been started by anyone yet. Yours would fill in as you go.

2AI and this work

Will AI change your work as an Online Marketplace Manager?

Nobody can say exactly how. Here is what this job is being asked for next, and where to start.

The new skills this role is being asked for

  • Advanced Prompt Engineering for Marketplace Copy
  • Cross-Channel Attribution & Incrementality
Why each one is rising

The future skills this job leans on

We'll only ever tell you what we can actually back up. No hype, no scare tactics.

What happens when you start

Next, a free account. We build your Online Marketplace Manager plan as you set up, starting with the free AI Fluency module. No card.

Your first Future Fluency module is free. After that, your AI tutor is £70 a month.

Ready to pay? Subscribe for £70 a month

Keep this read. One email with what AI is changing in this job, the new skills it asks for and where to start free. Nothing else follows unless you confirm your address.

3What this role really is

An online marketplace manager makes products sell on platforms like Amazon and eBay. You check listings are accurate, run ads, and track what makes money. It is a hands-on role where you see your work affect sales directly.

4What you'd actually use

The tools this job runs on, and how well you'd need to know each one.

Amazon Seller Central / Vendor Central Intermediate

Managing listings, monitoring sales, checking account health, creating FBA shipments, and handling basic case logs. This is your bread and butter.

eBay Seller Hub Intermediate

Listing products, managing orders, responding to buyer messages, and tracking performance for our eBay presence.

Helium 10 / Jungle Scout Intermediate

Conducting keyword research, analysing competitor listings, tracking product rankings, and identifying new product opportunities. These are your secret weapons.

Pacvue / Teikametrics Basic

Monitoring existing PPC campaigns, making minor bid adjustments based on clear instructions, and pulling performance reports. You'll be learning to get the most out of these.

ChannelAdvisor / Linnworks Basic

Executing bulk uploads for new listings, syncing inventory across channels, and pulling basic sales reports. You'll be using this to keep everything connected.

Microsoft Excel / Google Sheets Advanced

Analysing large datasets, building basic performance trackers, cleaning data from marketplace reports, and creating simple forecasts. If you're not good with spreadsheets, this role will be tough.

5What you get to decide, and how that grows

Power in a job isn't your title. It's what you're allowed to decide. Here's how it grows as you move up.

The choiceComing in Where you are nowThe step above
PPC Campaign Budget Adjustments Propose adjustments to supervisor; execute after approval. Execute adjustments within a pre-approved budget range (e.g., ±10% weekly spend); escalate if exceeding or significantly reducing this range. Approve and execute budget changes up to £5K per campaign without prior approval; consult Director for larger shifts.
Listing Content Changes Draft changes based on templates; require full review and approval. Independently update product titles, bullet points, and descriptions based on keyword research and internal guidelines; major A+ Content changes require Marketing review. Define and approve A+ Content strategy; oversee content updates across multiple product lines; mentor junior team on best practices.
New Product Launch Strategy (Marketplace) Support data collection and initial listing setup under guidance. Develop and execute the marketplace launch plan (listing, initial PPC, promotion strategy) for new products, consulting with Senior Manager on overall approach. Lead the end-to-end marketplace launch strategy for significant new product lines, coordinating across Sales, Marketing, and Product teams.
Marketplace Issue Resolution (e.g., stranded inventory) Identify issue and escalate to supervisor with supporting information. Independently open and manage support cases with marketplace teams, following established protocols; escalate if no resolution within 72 hours. Define the process for complex issue resolution; handle escalated cases directly with marketplace account managers; train team on best practices.

6How you'll be judged

The scoreboard, and what is not on it. The hard targets, how often each is actually looked at, and the quiet signals that never reach a dashboard.

Marketplace Revenue Growth
Year-on-year (YoY) increase in gross merchandise volume (GMV) across all assigned marketplaces.
Target · +15-20% YoY

If last year's Q2 marketplace revenue was £500,000, your target for this Q2 would be £575,000 to £600,000. We'll track this against actuals.

Advertising Cost of Sale (ACoS) / Total ACoS (TACoS)
The efficiency of your paid advertising spend on marketplaces. ACoS measures ad spend against ad-attributed sales, while TACoS measures it against total sales, giving a better picture of overall impact.
Target · ACoS < 20% (mature products), TACoS < 12%

If you spent £5,000 on Amazon ads and generated £25,000 in ad-attributed sales, your ACoS is 20%. If total sales for those products were £50,000, your TACoS is 10%. You'll need to keep these numbers healthy.

Buy Box Win Rate
The percentage of time our products are winning the 'Buy Box' on Amazon or similar primary purchase positions on other platforms. This is critical for conversion.
Target · >85% for key products

If a top-selling product is available for purchase 100 times a day, and we're in the Buy Box for 88 of those, that's an 88% win rate. We want to see this consistently high.

Inventory Performance Index (IPI) Score
Amazon's metric for how well you manage your FBA inventory. A higher score means better storage limits and lower fees.
Target · >550 (Amazon specific)

Your IPI score should consistently stay above 550. If it dips to 500, you'll need to take action to improve sell-through or remove excess stock to avoid penalties.

Listing Optimisation Score
An internal metric based on completeness and quality of product listings (e.g., A+ Content, number of images, keyword saturation, review count).
Target · >90% on top 50 products

We'll audit 10 of your top listings each month. If they're missing key images, have outdated descriptions, or aren't using all relevant keywords, that'll count against your score. You're aiming for near-perfection here.

Proactive Issue Resolution
How quickly and effectively you identify and resolve marketplace-specific issues (e.g., stranded inventory, listing suppression, account health warnings) before they become major problems.
  • You're flagging potential issues to your manager before they escalate. You've got a clear plan of action documented for common problems. We see fewer 'fire drills' caused by marketplace issues. You're not just reacting
  • you're anticipating.
Marketplace Knowledge Sharing
Your ability to keep the wider team (Sales, Marketing, Product) informed about key marketplace changes, best practices, and competitive insights.
  • You regularly share useful articles or insights in team meetings. You're the go-to person when someone has a question about Amazon's latest policy. You might even run a quick 'lunch and learn' session on a new feature. People actually listen when you talk about marketplaces.
Collaboration with Internal Teams
How well you work with Sales Ops, Marketing, and Customer Service to ensure a smooth end-to-end marketplace operation.
  • Sales Ops aren't complaining about inaccurate forecasts from you. Marketing feels like you're actually using their assets. Customer Service knows who to come to for marketplace-specific queries. You're seen as a helpful partner, not a silo.
Strategic Input on Listing & PPC
Your ability to not just execute, but to propose and justify improvements to our listing content and advertising strategies based on data.
  • You're coming to your manager with ideas for A/B tests on listing images or new keyword targets. You can explain why you think a certain PPC strategy will work, backed by data from Helium 10 or similar tools. You're thinking beyond just 'doing the work'.

7Would you like it

Both sides. What people enjoy, and what grinds them down.

What people enjoy
Seeing Direct Impact

You'll be able to see your optimisations (like a new keyword or a price adjustment) directly affect sales and rankings within days or weeks. It's a very clear cause-and-effect role.

You change a product title and description on Tuesday, and by Friday, you see a measurable increase in organic search traffic and sales for that product. That's a pretty satisfying feeling.

Problem Solving & Optimisation

Every day presents a new puzzle: why is this product's ACoS too high? How do we get more reviews? How can we beat this competitor? You'll be constantly tweaking and improving things.

You identify that a competitor is undercutting us on a key product. Your task is to figure out a pricing and ad strategy that allows us to win the Buy Box profitably without starting a price war. It's like a game of chess.

Autonomy within Guidelines

While you'll have overall targets, you'll have a lot of say in how you achieve them. You'll choose your own keywords, structure your own campaigns, and decide on listing content, within the overall strategy.

Your manager gives you a target for Q3 marketplace revenue. You're then free to design the PPC campaigns, run promotions, and optimise listings as you see fit to hit that number, reporting back weekly on progress.

What frustrates people
  • The Black Box Algorithm: A marketplace (especially Amazon) will change its search algorithm or Buy Box logic overnight with no announcement, forcing you to scramble and re-learn what works. It's incredibly frustrating.
  • The Futility of Seller Support: Spending hours crafting a detailed case with screenshots to resolve a critical issue, only to receive a generic, unhelpful, copy-pasted response from a bot or untrained agent. It feels like shouting into the void.
  • Irrational Competition: Competing against sellers who are willing to operate at a loss, driving prices down for everyone and making it impossible to win the Buy Box profitably. It's a race to the bottom sometimes.
  • Inventory Catch-22: Running out of stock on a bestseller kills your sales velocity and search ranking, which can take weeks to recover. But over-stocking leads to crippling long-term storage fees. It's a constant balancing act.
  • Explaining Marketplace Math: Trying to justify to a CFO why a 30% ACoS on a new product launch is a strategic investment, not a loss, because it's building sales history and organic rank. Sometimes it feels like you're speaking a different language.
  • The Constant Threat of Suspension: Living with the low-grade fear that one false counterfeit claim or a sudden spike in your Order Defect Rate could get your entire account or top-selling product suspended, instantly halting revenue. It's a real pressure.
What this role does not give you
  • A predictable, unchanging work environment – marketplaces are anything but static.
  • Complete control over your destiny – you're always subject to platform rules and decisions.
  • A role where you can avoid detailed data analysis and spreadsheet work – it's fundamental here.
  • A quiet, solitary job – you'll be interacting with multiple internal teams and external platforms.

8Who you work with

You're directly responsible for driving profitable sales growth through our marketplace channels. Your work ensures our products are competitive, visible, and compliant on platforms that represent a significant portion of our overall revenue. Get it right, and we hit our sales targets; get it wrong, and we're leaving money on the table and potentially damaging our brand reputation on these critical platforms.

Inside the business
  • Senior Online Marketplace Manager (for guidance and strategy alignment)
  • Sales Operations (for forecasting and inventory planning)
  • Marketing Team (for brand messaging and content assets)
  • Product Team (for new product launches and feedback)
  • Customer Service (for marketplace-specific inquiries)
Outside the business
  • Amazon Seller Central Support
  • eBay Seller Hub Support
  • Marketplace Account Managers (e.g., Amazon Vendor Managers)
  • Third-party software providers (e.g., Helium 10, ChannelAdvisor)

9What you need before you start

Not a wish list. The things you would be expected to already have.

  • At least 2-3 years of hands-on experience managing product listings and/or PPC campaigns on major online marketplaces (Amazon, eBay, Walmart, etc.). This isn't a 'learn from scratch' role.
  • Proven ability to analyse sales data, identify trends, and make data-backed recommendations for optimisation using tools like Excel and marketplace analytics platforms.
  • Experience with keyword research and applying it to listing content and advertising strategies.
  • A solid understanding of marketplace profitability drivers, including fees, ad spend, and fulfillment costs.
  • Demonstrable experience working effectively in a commercial, target-driven environment.

10What to practise next

Where the job is going, and what to do about it starting this week.

Advanced Marketplace Analytics & Visualisation

Simply pulling raw reports isn't enough anymore. You'll need to build custom dashboards and conduct deeper analyses to uncover hidden insights and present them clearly to others. This means moving beyond basic Excel charts.

SQL for Data Extraction · Dashboard Design Principles · Statistical Significance for A/B Testing · Cohort Analysis

  • This week: Take a free online course on basic SQL for data analysis (e.g., Codecademy, DataCamp).
  • This month: Learn the basics of Tableau Public or Power BI Desktop. Try to recreate one of your existing Excel reports as a dynamic dashboard.
  • Month 2: Design and run an A/B test on a listing image, making sure you properly calculate statistical significance before declaring a winner.
  • Month 3: Start experimenting with cohort analysis on our sales data to see how different customer groups behave over time.

Quick win: Download Tableau Public or Power BI Desktop and just start playing around with some of our marketplace sales data. You'll be surprised what you can build in a few hours.

11Staying current once you are in

What people here do to keep up
  • Regularly reading industry blogs and news (e.g., Seller Central News, Retail Dive, Modern Retail) to stay on top of marketplace changes.
  • Attending relevant webinars or online courses on marketplace optimisation, PPC strategies, or e-commerce analytics.
  • Participating in online communities or forums for marketplace sellers to share insights and learn from peers (e.g., Amazon Seller Forums).
  • Experimenting with new features or tools on marketplaces in a controlled environment to understand their potential impact.
  • Networking with other marketplace professionals to share best practices and challenges.

12The rising capability

The rising capability

Zavmo analysis

What's rising in its place

This is where the work is heading, and the higher pay with it. Get fluent here and the shift stops being a threat and starts being your edge.

Advanced Prompt Engineering for Marketplace Copy

AI language models are getting incredibly good at generating compelling, keyword-rich copy. Competitors are already using tools like ChatGPT or Jasper to draft product titles, bullet points, and descriptions in minutes, not hours. If you're not using AI for this, you're falling behind.

  • Context Windows & Token Limits
  • Temperature Settings
  • Role-Playing Prompts
  • Iterative Prompting

Cross-Channel Attribution & Incrementality

As we sell on more platforms and run more ads, understanding which channels truly drive incremental sales (rather than just cannibalising existing ones) becomes critical. Marketplace data is often siloed, but the future is about connecting the dots to see the bigger picture of our marketing spend.

  • First-Touch vs. Last-Touch Attribution
  • Incrementality Testing
  • Customer Journey Mapping
  • Data Blending Techniques

13What you’ll use

What you’ll use

Skills this role draws on

Technical

  • Marketplace Algorithm Optimisation
  • On-Platform PPC Management
  • Inventory & Fulfillment Strategy (FBA/FBM/SFP)
  • Dynamic Pricing & 'Buy Box' Strategy
  • Digital Shelf Analytics
  • Marketplace Compliance & Health

14The pathway

The pathway

How you actually get there, here

How you become one varies far more by country than what one does. This is the UK route. Most people take one of these ways in; the right one depends on where you're starting from.

  1. 1

    Marketplace Sales Coordinator / E-commerce Assistant

    2-3 years

    Skills to master

    • Listing creation and maintenance, basic report pulling, customer service, inventory monitoring, understanding marketplace rules.

    You're ready to move on when

    • You can independently manage listing updates without errors.
    • You're proactively identifying minor inventory issues.
    • You've successfully handled routine marketplace support cases.
    • You've shown initiative in suggesting small optimisations.
  2. 2

    Digital Marketing Executive (with E-commerce focus)

    2-4 years

    Skills to master

    • PPC campaign management (Google Ads, Social Ads), SEO basics, content creation, analytics interpretation, understanding conversion funnels.

    You're ready to move on when

    • You've successfully managed paid campaigns with clear ROI.
    • You understand keyword research and its application.
    • You can analyse website traffic and conversion data.
    • You're comfortable working with product data and content.
  3. 3

    Sales Analyst (with E-commerce exposure)

    3-5 years

    Skills to master

    • Advanced Excel, data modelling, sales forecasting, trend analysis, reporting, understanding commercial drivers.

    You're ready to move on when

    • You can build complex sales reports and dashboards.
    • You're skilled at identifying patterns and anomalies in large datasets.
    • You understand the financial impact of sales decisions.
    • You've worked with e-commerce sales data previously.

15Where this role leads

The long view: This work can lead to strategy roles overseeing larger product categories, or management roles owning marketplace channels and teams.

The ten Future Fluencies

Zavmo analysis

The credential is what you can do today. These are what keep you valuable.

A qualification proves you can do the job as it's defined today. These ten are what decide whether you're still the obvious person for it in five years. They're the capabilities employers are now writing into senior roles faster than people are learning them. Zavmo weaves them through whatever you study, so you come out with both: the credential and the fluency.

The highlighted ones are the Fluencies your role leans on hardest, from how Online Marketplace Manager is actually changing.

Where it leads

Roles this leads to

How you would learn this

One to one, on the work you already do

A tutor sets the task against your own job and marks the reasoning, at your pace. There is no cohort to fall behind.

A lesson from Managing Marketing and Digital Communications, worked against Online Marketplace Manager.

Managing Marketing and Digital Communications Level 4

Applied to your work in Online Marketplace Manager

This unit aims to provide learners with the ability to plan, design, and coordinate the implementation of a marketing campaign using multimedia platforms. Learners will also be able to optimise campaign content, assess data, analyse research findings, and derive insights to target key audiences effectively.

How the thinking builds
  1. 1 Remember
  2. 2 Understand
  3. 3 Apply
  4. 4 Analyse
  5. 5 Evaluate
  6. 6 Create
An illustration of a Zavmo lesson, built from this role’s own route. The unit, its objective and every criterion above are the awarding body’s own words, not an example.

It is £70 a month, billed monthly. Your free first module is Future Fluency, and you can cancel any time.

See Your Progress Grow Illustration
Online Marketplace Manager
  • Marketplace Algorithm Optimisation
  • On-Platform PPC Management
  • Inventory & Fulfillment Strategy (FBA/FBM/SFP)
  • Dynamic Pricing & 'Buy Box' Strategy
  • Digital Shelf Analytics
  • Marketplace Compliance & Health
This is your Mind Palace on learn.zavmo.ai. Every skill above comes from this role's own record, not an example borrowed from another job. A node lights up when you evidence it, and what you build stays yours between jobs. That is the part a course cannot do.

16The detail, folded away

Everything else the record holds

The career branches in full, how AI is already showing up in the day-to-day, and the questions people ask about this job. Here when you want them, out of the way while you decide.

Where it leads next, rung by rung

Where it leads

The career path, and where it branches

Online Marketplace Manager is a start, not a ceiling. Each step below asks for new skills and hands back more autonomy.

  1. Senior Online Marketplace Manager (L3)

    3-5 years in current role

    You'll move from managing specific categories/channels to owning entire workstreams, driving strategic optimisations, and mentoring junior team members. More autonomy, more complexity, more impact.

    • Full-funnel PPC Strategy Designing comprehensive ad strategies across Sponsored Products, Brands, and Display.
    • Marketplace Expansion Evaluating and launching products on new marketplaces (e.g., Walmart, Etsy).
    • Advanced Inventory Optimisation Minimising long-term storage fees and optimising FBA replenishment cycles at scale.
    • Vendor Management Building relationships with marketplace account managers and third-party tool providers.
Working with AI on the job

Working with AI

Where AI is starting to help

Let's be real, managing online marketplaces can feel like a never-ending battle of data, algorithms, and endless admin. But what if you could offload a huge chunk of that repetitive, time-consuming work to AI? That's exactly what we're doing here at Zavmo, and you'll be right at the forefront of it.

We're not just talking about theory; we're actively integrating AI tools into our daily sales operations. For an Online Marketplace Manager, this means less time wrestling with spreadsheets and more time actually strategising and growing our business. Think of AI as your super-efficient assistant, handling the grunt work so you can focus on what truly moves the needle.

Automated Repricing & Bid Management

Use AI-powered tools like Teikametrics or Pacvue to automate PPC bid adjustments and product repricing 24/7. The AI analyses competitor actions, sales velocity, and profitability targets, making thousands of micro-adjustments that a human simply can't keep up with. This frees you up from constant manual tweaking.

Review & Sentiment Analysis

Feed thousands of customer reviews and questions into an AI model to instantly identify recurring product defects, feature requests, or packaging issues. This replaces hours of manual reading and categorisation, giving you actionable insights much faster. You'll know exactly what customers love (and hate) about our products.

AI-Assisted Listing Optimisation

Use AI tools (like Jasper or copy.ai, often integrated with keyword data from Helium 10) to generate multiple versions of titles, bullet points, and descriptions. The AI can craft compelling, keyword-rich copy that's optimised for both the marketplace algorithm and human shoppers, saving you hours of writing and testing.

Intelligent Customer Service Drafting

Utilise AI-powered helpdesks (like Zendesk AI or Gorgias) to auto-draft responses to common customer inquiries ('Where is my order?', 'How do I return this?'). The AI can also summarise long customer complaint threads for faster human review, meaning you spend less time on routine queries and more on complex issues.

Common questions

Common questions

How do you become an Online Marketplace Manager?

Common routes in include Marketplace Sales Coordinator / E-commerce Assistant (2-3 years), Digital Marketing Executive (with E-commerce focus) (2-4 years) and Sales Analyst (with E-commerce exposure) (3-5 years). Times vary with prior experience.

Where can an Online Marketplace Manager progress to?

This role can lead on to Senior Online Marketplace Manager (3-5 years in current role), depending on the skills you build.

What new skills matter most for an Online Marketplace Manager?

Increasingly, Advanced Prompt Engineering for Marketplace Copy and Cross-Channel Attribution & Incrementality. These are the skills our record of this role lists as growing.

Free tools

Want a read on where you stand?

Three free tools, no account needed. Each one ends with a role, a level and a way in.

Read the Zavmo manifesto to understand how you will be taught Meet your tutors

Or try another one

17Where to go from here

Other roles at Level 3

Same depth of qualification, different job. Useful if the work appeals but this particular role does not.
This job at other levels
More jobs in sales

Stay in the field you know and move sideways rather than up.
If you leave this industry

The skills involved, data analysis, digital advertising, commercial thinking, and understanding online consumer behaviour, apply beyond marketplaces. They can lead to e-commerce management, digital marketing, or product management roles in companies that sell online.

This role profile is © 2026 Growth Engineering Technologies Ltd. Built from UK occupational standards and regulated qualification data, and written for Zavmo.

You're not behind. You're right on time. The shift is only just beginning. Your role won't look the same in two years. Be the one who leads the change, not the one it happens to. Start my free AI Fluency module What happens next: a free account, then we build your plan as you set up. No card. Build your plan, see your roadmap and meet the twelve tutors matched to you. All free. When you're ready to start learning, it's £70 a month, billed monthly. Cancel any time and billing stops.