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Dennis Miano
All work

Case study

Supplies Mlangoni

A school-errands service for parents: send the school list as a photo, PDF or WhatsApp message, get a priced quote, pay by M-Pesa, and a RAJI electric rider delivers it.

Client
RAJI Global
Type
Platform
Industry
Education & Delivery
Location
Nairobi, Kenya
Year
2026
Live
suppliesmlangoni.rajiglobal.co.ke
Supplies Mlangoni on a desktop and a phone

The problem

Buying a school list means bookshop queues, items out of stock and a lost day for working parents. RAJI wanted a consumer service on top of its delivery network: parents hand over the list, and RAJI shops for it and brings it to the door.

What I built

  • A one-screen order form: upload a photo or PDF of the list, type it, or send it on WhatsApp, with area search across Nairobi and every Kenyan county.
  • A staff orders board that moves each list from new, through pricing, quote sent, paid and shopping, to delivery, with a "Waiting on you" strip and alerts for anything running late.
  • Quotes priced item by item, with delivery by zone and an optional items-only discount, sent to the parent on WhatsApp.
  • Payment by M-Pesa Paybill, with an "I’ve paid" step that staff confirm.
  • Delivery booked as a RAJI shipment through the operations system: the same day when paid by 4 pm, every day including Sundays, and by bus or courier to the rest of Kenya.
  • Receipts, reports, a published privacy notice, customer data deletion, and uploaded lists deleted after 12 months.

Outcome

Live since November 2026.

Screens

Supplies Mlangoni: Home page, on a desktopSupplies Mlangoni: Home page, on a phone
Home page. What the service does in one line, same-day delivery when paid by 4 pm, and two ways to start: upload a list or send it on WhatsApp.
Supplies Mlangoni: Order form, on a desktopSupplies Mlangoni: Order form, on a phone
Order form. One screen: the list as a photo, PDF, typed or on WhatsApp, where to deliver with a landmark, and a WhatsApp number for the quote. Nothing to pay until the quote arrives.
Supplies Mlangoni: Staff orders board, on a desktop
Staff orders board. Every order from new list to delivered, with the same-day cut-off counting down, payments to check, orders handed to RAJI with their tracking code, and what is waiting on the team.
Supplies Mlangoni: The quote on a parent’s phone, on a phone
The quote on a parent’s phone. Each item at its shelf price, the service fee and delivery for the parent’s zone, the total, and when it arrives if paid before 4 pm.