How to Build a Marketplace on Bubble.io: The Complete 2026 Guide
Marketplaces are one of the most complex Bubble.io builds and one of the most valuable. A two-sided marketplace connecting buyers and sellers requires careful data modelling, a payment split mechanism, trust signals on both sides, and a supply-before-demand launch strategy.
The Architecture Reality
A marketplace on Bubble.io is a multi-sided platform that connects two or more user types — typically buyers and sellers — through a structured discovery, transaction, and delivery mechanism. The complexity comes from three sources: the dual user type architecture (every data type and workflow must handle both buyer and seller contexts); the payment split mechanism (payments from buyers must be split between the platform and the seller via Stripe Connect); and the cold start problem (the marketplace has no value for buyers without sellers and no value for sellers without buyers). Bubble.io is the right platform for a marketplace MVP because its visual architecture makes the dual-user-type data model manageable, its Stripe Connect integration handles payment splits natively, and the build speed means a working marketplace can be in the hands of real users in 4-8 weeks.
How to Structure the Database
The User data type: shared but role-differentiated
Create a single User data type with a role field (Buyer, Seller, or Both) rather than separate Buyer and Seller data types. Most marketplace users will eventually act as both buyer and seller; separating them into different data types creates a rebuild requirement when a user wants to switch roles.
The Listing data type: the core supply-side record
Fields: title, description, category, price, images (list of file attachments), seller (relationship to User), status (Active, Paused, Sold), and average rating (number). The Listing is the primary unit of value discovery for buyers.
The Order data type: the transaction record
Fields: buyer (relationship to User), seller (relationship to User), listing (relationship to Listing), amount, platform fee, seller payout, status (Pending, Confirmed, In Progress, Completed, Disputed, Refunded), and Stripe PaymentIntent ID.
The Review data type: the trust layer
Fields: reviewer (relationship to User), reviewee (relationship to User), order (relationship to Order), rating (number 1-5), comment (text), and type (Buyer reviewing Seller, or Seller reviewing Buyer). Dual-direction reviews create accountability on both sides of the transaction.
🔗 Related reading on sasolutionspk.com
Bubble.io Database Design: The Complete Guide for Founders in 2026
The foundational data model principles that underpin a correctly structured marketplace build.
Bubble.io Stripe Integration: The Complete Guide for SaaS Founders
How Stripe Connect works in a Bubble.io marketplace context — the payment split, seller onboarding, and payout workflows.
The Payment Architecture
Stripe Connect Standard vs Express
Stripe Connect Express is SA’s recommendation for most Bubble.io marketplaces: it creates a lightweight seller account managed by the platform, with a simplified onboarding flow and platform-managed payouts. Express is faster for sellers to onboard and simpler for the platform to manage than Stripe Connect Standard.
The payment flow in Bubble.io
When a buyer completes a purchase: (1) create a Stripe PaymentIntent with the full amount; (2) specify the application_fee_amount (the platform’s commission) and the transfer_destination (the seller’s Stripe Connect account ID); (3) Stripe automatically splits the payment, retaining the platform fee and transferring the remainder to the seller’s connected account; (4) create an Order record in Bubble.io with the PaymentIntent ID and split amounts.
Seller payouts
Stripe Connect manages seller payouts automatically on a configurable schedule (daily, weekly, or manual). The platform does not need to manually transfer funds to sellers. Disputes and refunds initiated through Stripe are reflected in the platform’s balance and can be recorded in Bubble.io via Stripe webhooks.
Q: How long does it take to build a marketplace on Bubble.io with SA?
A full marketplace build — dual user types, Listing creation and discovery, Stripe Connect payment splits, order management, dual-direction reviews, and messaging — typically takes 6-10 weeks from the Discovery Sprint to a launch-ready product. The Discovery Sprint ($345) produces the full feature specification and a fixed build quote.
Q: What percentage should I charge as a marketplace commission?
Service marketplaces typically charge 15-25%. Product marketplaces typically charge 5-15%. The commission must be high enough to cover platform costs and generate margin, but low enough that sellers find it more valuable to sell through the platform than to acquire customers directly.
Q: Should I build a marketplace or a directory first?
For most marketplace concepts, SA recommends building a curated directory first: a platform that lists and showcases providers without processing payments. The directory validates that buyers find value and that providers value the exposure. Once the directory demonstrates demand on both sides, adding payment processing transforms it into a transacting marketplace.
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