The verdict in three sentences
A useful ecommerce specification fits into six measurable sections: catalogue, payments, delivery, inventory, back office and support. For a Singapore appliance brand, the two requirements that decide success are instant payment confirmation for PayNow and wallets and live showroom stock, because promising same day delivery on an item that is out of stock costs you the customer. Budget SGD 40,000 to SGD 150,000 for the build and SGD 800 to SGD 2,500 a month for support and hosting.
The Singapore context
Take the commercial director of a Singapore kitchen and home appliance brand with 3 showrooms (Orchard, Tampines, Jurong East) selling induction hobs, ovens, air purifiers and small appliances. Customers compare prices on marketplaces and expect same day or next day delivery to any HDB block or condo, with installation slots booked online. Payment habits are mixed: PayNow QR, cards, Apple Pay and Google Pay, and buy now pay later for larger items.
The specification template, ready to fill in
| Section | What to specify | Example measurable requirement |
|---|---|---|
| Catalogue | SKU count and product page content | 600 SKUs, 5 photos, specs, energy label, warranty |
| Payments | Methods and confirmation | PayNow, cards, Apple Pay, Google Pay; order confirmed within 30 seconds |
| Instalments | BNPL threshold | Offered above SGD 300 |
| Delivery | Zones, slots, fees | Same day if ordered before 12:00, next day otherwise, fees shown at cart |
| Installation | Booking | Installation slot chosen at checkout for large appliances |
| Inventory | Source and frequency | Stock across 3 showrooms and warehouse refreshed every 10 minutes |
| Performance | Mobile speed | Product page under 2.5 seconds on 4G |
| Data protection | PDPA compliance | Consent records, Data Protection Officer contact on site |
Payment requirements in detail
| Requirement | PayNow QR | Cards and wallets | BNPL |
|---|---|---|---|
| Integration | Via payment gateway with dynamic QR | Via payment gateway | Provider plugin or API |
| Confirmation | Automatic webhook to the store | Gateway response | Provider callback |
| Expected confirmation time | Under 30 seconds | Immediate | Under 60 seconds |
| Fees | Gateway dependent, 2026 estimate under 1 % | 2026 estimate 2.5 to 3.5 % | Merchant fee, 2026 estimate 3 to 6 % |
| Refunds | Documented process | Via gateway | Via provider |
| Required test | Live low value payment in staging | Live payment and decline case | Approval and rejection cases |
Require that no order is marked as paid without a gateway confirmation, which protects you from fake payment screenshots.
Budget by scope
| Scope | 2026 budget | Includes |
|---|---|---|
| Standard store | SGD 40,000 to 60,000 | Up to 400 SKUs, PayNow, cards, delivery slots |
| Store with live showroom stock | SGD 60,000 to 100,000 | 400 to 1,000 SKUs, stock sync, BNPL, installation booking |
| Omnichannel platform | SGD 100,000 to 150,000 | Click and collect, warranty registration, loyalty |
| Support and maintenance | SGD 600 to 2,000 a month | Updates, security, payment monitoring |
| Hosting or platform plan | SGD 200 to 500 a month | Depends on platform and traffic |
Kolonell scopes comparable builds as web applications: medium projects at 2,500,000 to 4,000,000 FCFA and complex ones from 4,000,000 FCFA, with maintenance at 25,000 to 75,000 FCFA a month (about €38 to €115).
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Illustrative example: Wei Ling, commercial director of an appliance brand in Singapore, picks the live stock scope at SGD 80,000, with SGD 1,600 a month in support and hosting, so SGD 99,200 in year one. With an average order of SGD 650 and a 22 % gross margin, each order brings SGD 143. She needs about 694 orders to cover year one, around 58 a month. At 150 orders a month, the store generates roughly SGD 257,000 of annual gross margin.
FAQ
Is PayNow essential for a Singapore store?
Yes, it is widely used for larger purchases and has low fees. Offering it alongside cards and wallets often lifts checkout completion by several percentage points.
How do we avoid selling stock that has just gone in a showroom?
Require stock sync every 10 minutes or less and a safety buffer of 1 to 2 units on large appliances. This assumes your POS or ERP can export stock levels.
What does PDPA require for an online store?
Clear consent for marketing, a privacy notice, a Data Protection Officer contact and secure handling of customer data. Fines can reach 10 % of annual Singapore turnover for larger firms.
How long does a launch take?
Plan 10 to 14 weeks for a store with live showroom stock, including 2 weeks of testing. Product data and photography are usually the bottleneck.
What should monthly support include?
Updates, security patches, payment monitoring and small fixes, for SGD 600 to SGD 2,000 a month. Ask for a 4 hour response time on payment outages.
Let's scope your project. Send us your SKU count, showrooms and payment methods, and we will price the store, stock sync and support. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.