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BottleKing

Designing a better way to shop together

I designed BottleKing's Group Ordering experience to support shared purchases without making the underlying complexity visible to the customer, from inviting participants to payment, order tracking and viewing the completed order.

Start group order screen with a festive illustration and three benefits
Group shop screen with a Group Order Shop banner and product cards

My Role

I designed the Group Ordering experience across web and mobile, working through the host and participant journeys, payment states, order history and supporting components. The work meant translating a multi-user ordering model into an interface that stays simple even when an order has several participants and transactions.

The Problem

A normal e-commerce order has one buyer and one payment. A group order is different: several people contribute to the same order, each with their own relationship to it. That raises new questions. Who is the host? What did each participant pay for? Who covered the full amount? How should the order appear in order history?

The product had to represent one shared order without pretending everyone experienced it the same way. A host cares about the full order, a participant cares about their contribution, and both need to see the shared delivery and current status.

How Might We

How might we make a multi-person purchase feel as clear as a normal order while still giving each participant the information relevant to them?

One shared order, end to end

I mapped the group order as a single journey that both roles move through, so every screen could be designed against the same model.

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Group order flow, from the host starting an order and inviting participants through Split Payment or Pay-for-All, payment confirmation, one shared delivery and order tracking to the host and participant views of the completed orderSplitPay-for-AllNoYesHostParticipantHost starts a group orderHost invites participantsParticipants joinand add itemsHost reviews thegroup orderPaymentmode?Each participant paystheir own portionHost pays thefull amountPaymentconfirmed?Payment state shownto host and participantsPending, refunded anddiscrepancy states aredesigned for each roleOne shared deliveryis createdTotals map to confirmedPaystack transactionsShared order statusand trackingAppears in My Ordersas a Group OrderViewing as?Full order: participants,payments and totalsOwn items andpaid portionGroup order complete

Starting a group order

Rather than building a separate system, I extended the existing shopping and order patterns, so a group order feels like BottleKing, only shared.

Start group order screen
Group shop screen

One order, two perspectives

The host needs the full picture. A participant should not have to understand the whole order to understand their own part in it. I modelled both as variants of one order system rather than two separate experiences.

Host

Participant

Sees

Every participant, item and payment status

Their own items and paid portion

Totals

The whole-order total

Their own contribution

Shared

Delivery details and order status

Delivery details and order status

Making the money make sense

The same order behaves differently depending on how it is paid for, so the interface always has to say whether an amount is the whole order or an individual's share. Totals map to confirmed Paystack transactions and clearly separate whole-order amounts from participant amounts.

Split Payment

  • Each participant pays their own portion
  • Participant-level payment status is visible
  • Whole-order total stays distinct from each share

Pay-for-All

  • The host covers the full amount
  • It is clearly communicated that the host paid
  • Participants see the shared order without a payment ask

Designing beyond the happy path

Group orders introduce states a normal order never has: refunded participants, long participant lists, discrepancies and mixed payment states, alongside loading and error states. I treated these as part of the core experience, and on mobile the dense participant breakdown reflows into compact structures without losing clarity.

Decision

Model host and participant views as variants of one order system.

Why

This keeps the experience consistent while allowing each role to see the information that matters to them.

What I learned

The harder a product becomes, the more important the underlying model is. Once I separated the needs of the host, the participant and the shared order, the interface became much easier to structure. It sharpened my approach to role-based experiences and financial clarity.

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