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Case 14

Reseller BO — Multi-inventory & Prepaid Flow

Designed a reseller back office experience for managing multi-party inventory, prepaid fund flows, and product ordering across both app and web.

ResellerBack OfficeMulti-inventoryPrepaidB2BOperational UXOrder Flow
Outcome highlights
  • Clearer multi-inventory visibility reduced ordering errors
  • Prepaid balance visibility throughout the order flow improved operator confidence
  • A more structured BO experience for high-volume operational use
Product type
Reseller BO — inventory management & prepaid ordering
Platform
App, Web, Back Office
Timeline
2023–2026 · multi-phase operations program
Role
Operational UX, flow design, prepaid fund logic
Team
Designer, PM, operations, frontend engineers
Tools
Figma, FigJam, Flow diagrams
Context

Why this project existed

A reseller back office product where operators manage inventory across multiple product sources, maintain prepaid fund balances, and place orders on behalf of their downstream network. The product needed to handle complex multi-party inventory visibility, prepaid top-up and deduction flows, and ordering logic simultaneously.
My role

What I owned

  • Reseller BO UX
  • Multi-inventory Flow Design
  • Prepaid Fund Flow
  • Order Flow Design
  • App + Web Consistency
  • Operational UX
Challenge

What made it hard

  • Multi-party inventory meant operators needed visibility across multiple sources with different availability and pricing
  • Prepaid fund balance is business-critical — any confusion in deduction logic or balance display causes real financial risk
  • Order flows needed to confirm stock availability before fund deduction to prevent failed orders
  • App and web versions needed to serve the same operational tasks with different interaction affordances
Process

How it came together

  1. 1Mapped inventory sources, prepaid fund logic, and order flow requirements
  2. 2Designed inventory visibility and availability states per product source
  3. 3Designed prepaid fund top-up, deduction, and balance flows
  4. 4Designed order creation, confirmation, and status flows
  5. 5Reviewed edge cases: insufficient balance, out-of-stock, partial availability
  6. 6Iterated with operations stakeholders on real workflow patterns
Design decisions

The thinking behind it

Made prepaid fund balance visible at every order step — not just on a dedicated balance page — so operators always knew their purchasing power before committing to an order.
Final design

Selected views

Abstract representations — original mockups, not client screenshots.

Outcome / impact

What changed

  • Clearer multi-inventory visibility reduced ordering errors
  • Prepaid balance visibility throughout the order flow improved operator confidence
  • A more structured BO experience for high-volume operational use
Reflection

What I took away

In B2B BO products, the cost of UI ambiguity is real — a misunderstood balance display or an unclear stock state has direct business consequences.
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