PRD Template for Marketplace Products
A product requirements template built for marketplace product managers. Covers two-sided matching, trust and safety, payment escrow, supply-demand balancing, and the cold-start strategies that determine whether a marketplace succeeds or fails.
Why marketplace PRDs must think in two sides
Marketplace product management is fundamentally different from single-sided product management. Every decision affects two user groups with often competing interests. Lower fees attract more sellers but reduce your revenue. Stricter quality controls improve buyer experience but reduce supply. Faster matching helps buyers but may overwhelm sellers with requests. A marketplace PRD must make these tradeoffs explicit.
The most critical marketplace concept is liquidity — the probability that a listing results in a successful transaction within a reasonable time. High liquidity means both sides trust that the platform will deliver results. Low liquidity triggers a death spiral: sellers leave because there are not enough buyers, which causes more buyers to leave, which causes more sellers to leave. Your PRD should treat liquidity as the north star metric and design every feature to improve it.
This template provides marketplace-specific guidance for every PRD section, including dedicated sections for trust and safety infrastructure, matching algorithm requirements, and the cold-start strategies that determine whether a new marketplace ever reaches critical mass. Whether you are building a services marketplace, product marketplace, or B2B exchange, this template provides the two-sided framework your product and operations teams need.
The complete marketplace PRD template
Ten sections tailored for two-sided marketplaces with matching, trust, payment, and network effects guidance.
Problem Statement
Define the marketplace problem from both supply and demand sides. Marketplace problems are inherently two-sided — a solution that works for buyers but not sellers (or vice versa) will fail. Quantify friction on both sides.
Example: "Freelance graphic designers spend an average of 15 hours per week on unpaid activities: searching for projects, writing proposals, and negotiating rates. Only 8% of proposals result in a paid engagement. On the buyer side, businesses posting design projects receive an average of 47 proposals, making selection overwhelming — 62% of buyers report spending more than 3 hours reviewing proposals for a single project. Current platforms optimize for proposal volume, not match quality."
Tips
- Quantify the problem for both supply (sellers/providers) and demand (buyers/consumers)
- Identify the core matching inefficiency: are users finding each other, or is the selection process broken?
- Measure the cost of failed matches: wasted proposals, abandoned projects, bad reviews
- Note which side of the marketplace is harder to acquire — this shapes your entire strategy
Goals and Objectives
Set goals that balance both sides of the marketplace. Optimizing for one side at the expense of the other destroys the marketplace. Include liquidity metrics, match quality, and take rate alongside growth targets.
Example: "Primary: Increase match rate (proposal-to-engagement conversion) from 8% to 20% within 90 days by improving matching algorithm. Supply: Reduce average time-to-first-engagement for new sellers from 21 days to 7 days. Demand: Reduce average time from project posting to hiring decision from 5 days to 2 days. Marketplace health: Maintain supply-demand ratio between 3:1 and 8:1 (proposals per project). Revenue: Increase GMV per active buyer by 15% through better repeat matching."
Tips
- Set balanced metrics: every demand-side improvement must have a corresponding supply-side check
- Track liquidity: the percentage of listings that result in a transaction within a defined period
- Include marketplace health metrics: supply-demand ratio, time-to-match, repeat transaction rate
- Define take rate targets alongside GMV targets — they can move in opposite directions
User Stories
Marketplace user stories must cover both sides and their interactions. Include stories for onboarding, discovery, matching, transaction, fulfillment, review, and dispute resolution for both buyers and sellers.
Example: "As a buyer posting a logo design project, I want to receive 5-8 curated proposals from pre-qualified designers (instead of 47 unfiltered proposals) so that I can make a hiring decision within 1 day. Acceptance criteria: proposals ranked by match score; each proposal shows designer portfolio, completion rate, average rating, and estimated delivery time; buyer can shortlist, message, or hire directly from the proposal view. As a seller, I want to see only projects that match my skills and rate range so that I spend time on proposals with a realistic chance of winning."
Tips
- Write parallel stories for buyers and sellers — every buyer action has a seller counterpart
- Include trust and safety stories: identity verification, review moderation, dispute resolution
- Cover the payment flow from both sides: buyer payment, escrow, milestone release, seller payout
- Address power user scenarios: high-volume buyers, top-rated sellers, enterprise accounts
Functional Requirements
Marketplace functional requirements must cover matching algorithms, search and discovery, transaction management, payment escrow, review systems, and trust and safety mechanisms.
Example: "FR-1: Matching algorithm must consider: skill match, price range compatibility, availability, historical success rate, and geographic/timezone relevance. FR-2: Search must support filtering by category, price range, rating, response time, and completion rate with results ranked by match quality. FR-3: Escrow payment: buyer funds held until milestone acceptance; automatic release after 14 days if buyer does not respond to delivered work. FR-4: Review system: double-blind reviews (both parties submit before either sees the other's review); reviews cannot be edited after submission. FR-5: Dispute resolution: 3-step process — direct messaging, mediation by platform, binding decision with evidence review."
Tips
- Specify matching algorithm inputs and weights — this is the core IP of most marketplaces
- Define payment flow with exact timing rules: hold, release, refund, dispute, and payout schedules
- Include review system rules: who can review, when, editing policy, and dispute process
- Address fraud prevention: fake accounts, shill reviews, payment fraud, identity verification
Trust and Safety
Trust is the foundation of every marketplace. Users transact with strangers, so your platform must provide the verification, review, and dispute resolution mechanisms that make this feel safe. This section replaces generic non-functional requirements with marketplace-specific trust infrastructure.
Example: "TS-1: Identity verification: government ID verification via Stripe Identity for all sellers before first payout; optional for buyers but required for projects over $5,000. TS-2: Fraud detection: automated monitoring for fake reviews (review velocity, IP correlation, behavioral signals); manual review queue for flagged accounts. TS-3: Content moderation: AI screening of all listing descriptions and messages for prohibited content, contact information exchange (to prevent off-platform transactions), and policy violations. TS-4: Dispute resolution SLA: initial response within 24 hours; resolution within 7 business days; full refund if platform fails to resolve within 14 days."
Tips
- Define identity verification requirements for each side and transaction threshold
- Include anti-fraud measures: fake accounts, shill reviews, off-platform transaction prevention
- Specify content moderation approach: automated screening, human review queue, appeals process
- Set dispute resolution SLAs with clear escalation paths and refund policies
Success Metrics
Marketplace metrics must track both sides of the market, matching efficiency, transaction health, and network effects. The most important marketplace metric is liquidity — the probability that a listing results in a successful transaction.
Example: "Liquidity: Percentage of buyer projects that result in a completed engagement. Baseline: 34%. Target: 55%. Match quality: Average buyer satisfaction score for matched sellers. Baseline: 3.6/5. Target: 4.2/5. Supply health: Average time-to-first-engagement for new sellers. Baseline: 21 days. Target: 7 days. Demand retention: 90-day repeat purchase rate. Baseline: 28%. Target: 40%. Revenue: GMV growth month-over-month. Target: 15%. Take rate: Effective take rate. Target: 12-15% blended."
Tips
- Track liquidity as the north star metric — everything else flows from successful matches
- Monitor supply-demand balance: too much supply leads to seller churn; too much demand leads to buyer frustration
- Measure network effects: does each new user make the platform more valuable for existing users?
- Include disintermediation rate: what percentage of transactions move off-platform after the first match
Timeline and Milestones
Marketplace timelines must solve the cold-start problem: you need supply to attract demand and demand to attract supply. Plan for seeding one side of the marketplace before launching the other.
Example: "Phase 1 (Weeks 1-4): Core listing and search functionality. Milestone: 100 seller profiles seeded (manual outreach). Phase 2 (Weeks 5-8): Matching algorithm and proposal flow. Milestone: Match rate exceeds random baseline by 2x on test data. Phase 3 (Weeks 9-12): Payment escrow and review system. Milestone: End-to-end transaction flow tested with 20 real transactions. Phase 4 (Weeks 13-16): Demand acquisition — launch with curated buyer cohort. Milestone: 50 completed transactions with 4.0+ average satisfaction. Phase 5 (Weeks 17-20): Trust and safety systems. Milestone: Fraud detection live, dispute resolution SLA met."
Tips
- Plan for cold-start: seed one side before launching — typically supply-first for service marketplaces
- Include curated launch phases: start with a narrow category or geography before expanding
- Build trust and safety before scaling — fraud at scale destroys marketplace reputation
- Plan for geographic or category expansion as separate phases with their own success criteria
Risks and Mitigations
Marketplace risks include cold-start failure, supply-demand imbalance, disintermediation, fraud, and regulatory challenges around worker classification.
Example: "Risk: Sellers and buyers exchange contact information and transact off-platform to avoid fees. Likelihood: High. Impact: High (revenue leakage). Mitigation: Detect contact information in messages via NLP; lock communication to platform until first transaction complete; provide enough value (payment protection, dispute resolution, reviews) that on-platform transactions are clearly safer. Risk: Supply-side flooding — too many low-quality sellers dilute match quality and frustrate buyers. Likelihood: Medium. Impact: High. Mitigation: Seller vetting process (portfolio review, test project); quality score that affects search ranking; automated deactivation for sellers below quality threshold."
Tips
- Disintermediation is the existential risk for most marketplaces — provide enough value to keep transactions on-platform
- Address worker classification risk if your marketplace involves labor (gig economy regulations)
- Plan for supply quality degradation as the marketplace scales — quality controls must scale with growth
- Include regulatory risk: marketplace tax collection obligations vary by jurisdiction
Integrations
Marketplaces integrate with payment processors, identity verification services, communication tools, and often industry-specific platforms on both the supply and demand side.
Example: "Integration 1: Stripe Connect — split payments between marketplace and sellers; managed payouts; 1099 tax reporting for US sellers. Integration 2: Stripe Identity — government ID verification for seller onboarding. Integration 3: Twilio — in-platform messaging and video calls between buyers and sellers. Integration 4: SendGrid — transactional emails for match notifications, payment confirmations, and review requests. Integration 5: Algolia — search and discovery with personalized ranking per user."
Tips
- Use Stripe Connect for marketplace payments — it handles split payments, payouts, and tax reporting
- Include identity verification integration for trust and regulatory compliance
- Define communication channel strategy: keep all communication on-platform to prevent disintermediation
- Plan for tax reporting obligations: 1099s for US sellers, VAT for EU transactions
Open Questions
Document unresolved decisions about marketplace economics, take rate, geographic expansion, category strategy, and trust and safety policies.
Example: "Q1: What take rate balances revenue with seller retention? Industry ranges from 5% (low-friction, high-volume) to 30% (high-trust, curated). Decision owner: CEO. Needed by: Week 2. Q2: Should we allow sellers to set their own prices or use platform-determined pricing? Seller-set maximizes flexibility but creates price dispersion. Decision owner: Head of Supply. Needed by: Week 3. Q3: How do we handle disputes where both parties provide contradictory evidence? Binding arbitration, buyer-favored, or case-by-case? Decision owner: Head of Trust and Safety. Needed by: Week 4."
Tips
- Take rate decisions affect both sides — too high drives disintermediation, too low is not sustainable
- Category expansion order affects marketplace dynamics — start narrow and expand deliberately
- Dispute resolution philosophy (buyer-favored vs neutral) defines your marketplace culture
- Worker classification questions require legal counsel if your marketplace involves service labor
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