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E-commerce and E-business: Models, Payments, Outsourcing and Recovery

ICAN Foundation, Business Environment. Syllabus area 5.2

15 min read · Updated 5 November 2026

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In this part

A shop used to need a street, a door and opening hours. An online business needs a website or an app, a way to be paid and a way to deliver. It can serve customers in another state or another country at three in the morning.

That change, together with the use of internet technology to run the inside of a business as well as the selling side, is the subject of this topic.

The Institute of Chartered Accountants of Nigeria (ICAN) syllabus asks you to explain e-commerce and e-business, the business case for them, the policies and infrastructure they need, the choices in deploying them, their benefits and challenges, outsourcing, disaster recovery, the models of e-commerce and the payment systems. Examiners favour scenario questions, so practise applying each idea to a business.

In 30 seconds

E-commerce is buying and selling, or transferring funds and data, over an electronic network. E-business is wider: it also uses internet technology for internal processes such as inventory, production, customer relationships and enterprise planning. All e-commerce is e-business, but not all e-business is e-commerce.

E-commerce models are B2B, B2C, C2C, C2B, B2A and C2A. A firm can build its own platform, use a cloud platform, join a marketplace, go mobile-first or outsource. The main benefits are reach, availability and lower cost. The main challenges are security, logistics, payment trust and regulation.

E-commerce and e-business

E-commerce is the buying and selling of goods and services, or the transmitting of funds or data, over an electronic network, mainly the internet. It covers online retailing, digital marketplaces, mobile commerce and electronic payments, and it lets transactions happen without the parties being in the same place. E-business is the broader term.

It includes e-commerce but also covers internal processes, such as inventory management, production planning, customer relationship management and enterprise resource planning, run with internet technologies.

PointE-commerceE-business
ScopeBuying and selling onlineAll business activity that uses internet technology, selling and internal
NatureTransactionalTransformational, since it changes internal systems and strategy
RelationshipA part of e-businessThe whole, which includes e-commerce

Growth in the internet, mobile technology, cloud computing and digital payments has pushed firms from brick-and-mortar models towards digital-first and hybrid ones. In Nigeria, online marketplaces and payment companies have changed how goods, services and payments are accessed.

The business case for e-commerce

A business case is the formal justification for investing in e-commerce. It sets out the reasons, objectives, costs, expected benefits and fit with the firm’s strategy, and it should state the value proposition, revenue model, customer groups, competitive advantages and expected results. The firm must also weigh the investment cost, risk, scalability and technology fit before going ahead.

ScenarioExample
Market expansion and reachA furniture maker in Ogun State sells to customers in Lagos, Abuja or abroad without opening shops
Operational efficiency and lower costA spare-parts seller links live stock levels to its website to avoid over- and understocking
Convenience and personalisationRound-the-clock access, live chat, suggestions and instant downloads
Competitive pressureTraditional retailers add online channels because rivals have done so
New revenue streamsDigital subscriptions or online training alongside the core business

IT policies that come first

Information technology (IT) policies set the rules for secure, lawful and efficient use of technology, and they are the groundwork for e-commerce.

  • Data protection and privacy: how customer and staff data is collected, stored, used and shared, with consent and an opt-out. Nigerian firms must meet the Nigeria Data Protection Act and its regulations.
  • Cybersecurity framework: passwords, device security, monitoring, incident response, firewalls, encryption and staff training.
  • Acceptable use policy: how staff and customers may use the firm’s IT resources.
  • Vendor and outsourcing policy: how outside providers such as payment processors, couriers and cloud hosts are chosen and monitored, with confidentiality terms and service level agreements.
  • Business continuity and disaster recovery: how systems are restored after an attack, failure or disaster.

Choosing how to deploy

ChoiceAdvantageDisadvantage
In-house developmentFull customisation, integration with existing systems, control of dataHigh cost and long development
Cloud platform or SaaSCost-effective and scalable. Hosting, security and upgrades are includedLimits on customisation and reliance on the provider
Marketplace integrationNo infrastructure cost and instant audienceCommission fees and less control over branding and customer data
Mobile-firstSuits markets dominated by mobile internet. Often linked to Unstructured Supplementary Service Data (USSD) and mobile walletsNeeds good mobile design and payment links
Outsourcing to web developersProfessional design and functionNeeds clear agreements on scope, cost and time

A cost comparison. Assume a seller makes ₦1,000,000 of sales a month. On a marketplace that charges a 10% commission, the cost is ₦100,000. On its own cloud store with a ₦50,000 subscription and 2% payment fees, the cost is 50,000 + 20,000 = ₦70,000. The own store is cheaper and keeps customer data, but the marketplace brings a ready audience, so the right answer depends on sales volume and the need for traffic.

Benefits and challenges

Benefits to consumersBenefits to businessesChallenges
Global reach to markets beyond their areaWider market, national and globalCybersecurity threats and data breaches
24/7 availabilityLower operating costs through automationLogistics and fulfilment, especially where infrastructure is poor
Lower prices from lower overheadsData-driven decisions on price, stock and marketingPayment fraud and a trust gap from scams and failed deliveries
Personalisation through analyticsCustomer convenience from 24/7 shopping, delivery and payment optionsTechnology cost, heavy for small firms
Efficiency in orders, stock and supportAgility and innovation in testing products and nichesRegulation: data, tax and consumer laws differ by place
Digital literacy gaps and payment barriers for people without cards or mobile money

IT infrastructure and the internet

E-commerce needs scalable, secure, compliant infrastructure: servers and hosting, databases and storage, networks with firewalls and fast connections, application platforms such as content management systems and mobile app tools, security tools such as SSL certificates, antivirus, intrusion detection and VPNs, payment gateways, and backup and recovery systems. The standard for card payment data is PCI DSS.

The internet is the backbone. It gives global connectivity, round-the-clock access, several channels at once (email, social media, chat and the website), access to the cloud and customer self-service, so that shoppers browse, compare, pay and track orders without human help. Social media adds product discovery, social selling through shops and catalogues, customer engagement and reviews, influencer marketing and retargeting of site visitors with tailored ads.

The six e-commerce models

ModelMeaningExample
B2BBusiness to businessA wholesaler sells raw materials to small firms online
B2CBusiness to consumerA retailer sells to shoppers through its online store
C2CConsumer to consumer, through a platformClassified ads and auction sites
C2BConsumers offer goods or services to businessesFreelancers on a freelancing platform
B2ABusiness to administrationOnline tax filing, licence applications and public procurement
C2AConsumer to administrationPaying taxes or fees online

Payment systems

TypeHow it works
Card paymentsDebit and credit cards processed through payment gateways
Bank transfersDirect online transfers with real-time confirmation
Mobile money and USSDPopular where few people use banks
WalletsMoney preloaded into a digital wallet to spend on platforms
CryptocurrencyAccepted by some international platforms, but contested in Nigeria

A poor payment experience leads to abandoned carts and lost trust, and network errors, delays and chargebacks remain problems.

The digital middleman

Digitisation has turned brokers, dealers and agents into technology platforms that connect buyers and sellers, process payments and sometimes provide delivery and trust services. They add value through efficiency and lower transaction cost, as with global marketplaces and local classified-ad platforms.

Outsourcing and disaster recovery

Outsourcing modelWhat is passed on
Business process outsourcingTasks such as call centres, human resources or order processing
Information technology outsourcingSoftware development, maintenance and cybersecurity
Knowledge process outsourcingHigh-value work such as data analysis, legal services and market research
Cloud services outsourcingComputing power and storage

By location, outsourcing is onshore (the same country), nearshore (a neighbouring country) or offshore (a distant country, usually for cost). Typical functions passed on are delivery, customer service, IT infrastructure, payment processing and marketing.

Disaster recovery keeps a firm running after a cyber attack, natural disaster or system failure. A plan has regular, automated backups stored off site or in the cloud, redundancy, a recovery time objective (how fast systems must be back) and a recovery point objective (how much data, measured in time, may be lost).

Recovery options are a hot site (a fully equipped mirror, ready at once), a warm site (partly equipped, ready in hours or days), a cold site (basic space needing major set-up) and disaster recovery as a service (virtual copies of the firm’s systems in the cloud).

Worked example: advising a firm

Scenario. Kemi makes hand-dyed fabrics in Abeokuta and sells at local markets. She wants to sell nationwide, has a small budget and limited technical skill, and many of her customers pay by transfer or mobile money. Advise her.

  1. Business case. Market expansion at lower cost than opening shops, and a new revenue stream.
  2. Model. B2C, selling directly to shoppers. B2B can be added for retailers.
  3. Deployment. A cloud-based store, because it is cost-effective and handles hosting and security, perhaps with a marketplace listing for early traffic.
  4. Payments. Card and bank transfer through a payment gateway, plus mobile money and USSD for customers who rarely use cards.
  5. Policies and risks. Write a short data protection and security policy, use strong passwords and backups, and use a reliable courier for delivery.
  6. Challenges to plan for. Delivery in places with poor roads, trust from new customers, and payment failures.

E-commerce and e-business in more detail

E-commerce versus e-business: a clear example

A shop that sells clothes through its website is doing e-commerce. If it also uses internet-based systems to manage stock, link suppliers, pay staff, track customer relationships and plan production, it is doing e-business. The first concerns the transaction with the customer. The second concerns the whole business.

Choosing a deployment: a decision guide

If the firm...Consider
needs complete customisation and has a large budgetIn-house development
is small with limited technical skillA cloud platform or SaaS store
wants an instant audience and has few resourcesA marketplace listing
sells mainly to customers who use mobile phonesA mobile-first approach with mobile money and USSD
lacks technical skill and wants a professional siteOutsourcing to a developer

Challenges for e-commerce in Nigeria and how to manage them

ChallengeResponse
Logistics and delivery in places with poor roadsPartner with reliable couriers, offer pickup points and track orders
Payment fraud and distrust after scamsUse secure gateways, show reviews and clear return policies, offer pay on delivery where safe
Cybersecurity and data protectionEncryption, access controls and compliance with the data protection law
Technology cost for small firmsUse low-cost cloud platforms and grow in stages
Payment barriers for people without cardsAccept transfers, mobile money and USSD

Disaster recovery: the two objectives with numbers

The recovery time objective is how long a system can be down. If an online shop loses ₦200,000 of sales a day and can tolerate at most four hours of downtime, it needs a recovery option that restores service within four hours, such as a hot site. The recovery point objective is how much data can be lost, measured in time.

If orders must not be lost beyond fifteen minutes, backups or replication must run at least every fifteen minutes. A cold site is cheap but slow, and a hot site is fast but expensive, so the choice depends on the cost of downtime.

Outsourcing: reasons and risks

A firm outsources to cut cost, access skills, focus on its core business and scale quickly. The risks are loss of control, dependence on the supplier, poor quality, confidentiality breaches and hidden costs. These are managed by a clear contract with service levels, confidentiality terms, regular reviews and an exit plan.

Exam focus: e-commerce infrastructure, models and payment systems

IT infrastructure for e-commerce

It is the hardware, software, networks and data centres that support online business. It must be scalable, secure and compliant (for example with Nigeria’s data protection rules and PCI DSS for card data).

  • Servers and hosting platforms. On-premises or cloud, for example AWS, Google Cloud or local data centres such as MainOne.
  • Databases and storage. Customer records, transactions and catalogues, with backup redundancy.
  • Network infrastructure. Routers, switches, firewalls and reliable broadband or fibre.
  • Application platforms. Web frameworks, content management systems and mobile app platforms.
  • Cybersecurity tools. SSL certificates, antivirus, intrusion detection systems and VPNs.
  • Payment gateways. Paystack, Flutterwave and Remita for safe real-time payments.
  • Backup and recovery systems. Redundant storage and replication for continuity.

Why the internet is central to e-commerce

Global connectivity (a Lagos seller can reach buyers abroad); 24/7 accessibility; multichannel integration of e-mail, social media, chat and websites; cloud access; and customer self-service to browse, compare, pay and track orders.

Roles of social media in e-commerce

Product discovery; social selling through Facebook Shops or WhatsApp Business catalogues; customer engagement and reviews; influencer marketing; and retargeting campaigns that re-engage site visitors using tools such as Facebook Pixel.

Six e-commerce models

ModelMeaningExample
B2BBusiness to businessA wholesaler selling materials to SMEs through Alibaba
B2CBusiness to consumerJumia, Konga, Amazon
C2CConsumer to consumer, with a platform as intermediaryJiJi, eBay, Facebook Marketplace
C2BConsumers offer products or services to businessesFreelancers on Upwork or Fiverr
B2ABusiness to administrationTax filing, licence applications, public procurement
C2AConsumer to administrationOnline payment of taxes or health services

Payment systems

  • Card payments through gateways such as Paystack, Interswitch and Flutterwave.
  • Bank transfers with real-time confirmation.
  • Mobile money and USSD, popular where bank access is low, for example Paga, OPay and MTN MoMo.
  • Wallet systems, where users preload funds, for example JumiaPay or Kuda.

A poor payment experience causes cart abandonment and weakens trust. Network errors, delays and chargebacks remain challenges.

Common mistakes in the exam

  • Using ‘e-commerce’ and ‘e-business’ as if they were the same.
  • Listing benefits without the challenges when the question asks for both.
  • Naming a model without an example.
  • Forgetting that outsourcing can be onshore, nearshore or offshore.
  • Mixing the recovery time objective with the recovery point objective.
  • Recommending a deployment choice without reasons tied to the firm’s size and budget.

Quick revision

  • E-commerce is transactional and part of e-business, which is transformational.
  • Business case: reach, efficiency, convenience, competition, new revenue.
  • Five IT policies. Five deployment choices.
  • Six models: B2B, B2C, C2C, C2B, B2A, C2A.
  • Payments: cards, transfers, mobile money and USSD, wallets, cryptocurrency.
  • Outsourcing: BPO, ITO, KPO, cloud. Onshore, nearshore, offshore.
  • Disaster recovery: backups, redundancy, RTO, RPO, hot, warm and cold sites.

Practice questions

These are original questions written in the style of the ICAN exam. Try each one before you open the answer.

Section A style: multiple choice

Question 1. Which statement is correct?

  1. All e-business is e-commerce
  2. All e-commerce is e-business
  3. E-commerce and e-business are identical
  4. E-business excludes selling online
Show the answer

B. E-business is the wider term and includes e-commerce.

Question 2. A tailor who sells to other individuals through a classified-ads platform is using which model?

  1. B2B
  2. B2C
  3. C2C
  4. B2A
Show the answer

C. Consumer to consumer, with the platform as intermediary.

Question 3. Online payment of taxes by an individual is an example of:

  1. B2B
  2. C2B
  3. C2A
  4. C2C
Show the answer

C. Consumer to administration.

Question 4. The maximum acceptable data loss, measured in time, is called the:

  1. Recovery time objective
  2. Recovery point objective
  3. Hot site
  4. Redundancy
Show the answer

B. The recovery time objective is how fast systems must be restored.

Question 5. A backup facility with partial infrastructure that can be activated within hours or days is a:

  1. Hot site
  2. Warm site
  3. Cold site
  4. Mirror
Show the answer

B.

Question 6. Contracting a firm in a neighbouring country to handle customer service is:

  1. Onshore outsourcing
  2. Nearshore outsourcing
  3. Offshore outsourcing
  4. In-house development
Show the answer

B.

Question 7. A shop that sells goods through its website and also uses internet-based systems for stock and supplier links is doing:

  1. E-commerce only
  2. E-business
  3. Neither
  4. Barter
Show the answer

B. E-business is the wider term.

Question 8. A system that must be restored within four hours needs a:

  1. Cold site
  2. Hot site
  3. No plan
  4. Paper backup only
Show the answer

B. A hot site is ready at once.

Question 9. A recovery point objective of 15 minutes means:

  1. Systems must be restored in 15 minutes
  2. No more than 15 minutes of data may be lost
  3. The firm closes for 15 minutes
  4. Backups are weekly
Show the answer

B. It measures acceptable data loss.

Question 10. Which of these helps customers without cards to pay online?

  1. Mobile money and USSD
  2. Cash only
  3. Cheques only
  4. Barter
Show the answer

A. They widen the payment options.

Section B style: written questions

Question 11 (10 marks). Distinguish between e-commerce and e-business, and state four benefits of e-commerce to a business.

Show the marking guide

Distinguish (6 marks). E-commerce is buying and selling over an electronic network (2). E-business is wider, including internal processes such as inventory, customer relationship management (CRM) and enterprise resource planning (ERP) (2). All e-commerce is e-business but not the reverse, and e-commerce is transactional while e-business is transformational (2).

Benefits (4 marks). Any four: wider market, lower costs, data-driven decisions, customer convenience, agility and innovation.

Question 12 (20 marks).

(a) Explain four choices a firm has in deploying an e-commerce platform. (8 marks)

(b) Explain four challenges of e-commerce in Nigeria. (8 marks)

(c) Explain the difference between a hot site and a cold site. (4 marks)

Show the marking guide

(a) 8 marks, 2 each. Any four of: in-house development, cloud platform, marketplace integration, mobile-first strategy, outsourcing to developers, each with an advantage or disadvantage.

(b) 8 marks, 2 each. Any four of: cybersecurity threats, logistics and fulfilment, payment fraud and trust, technology cost, regulation, digital literacy, payment barriers.

(c) 4 marks. A hot site is fully equipped and ready for immediate use (2). A cold site is a basic location needing major set-up before use (2).

A further written question

Question 13 (10 marks). Explain the reasons for and the risks of outsourcing e-commerce functions.

Model answers

Show the model answer to Question 11

E-commerce is the buying and selling of goods and services, or the transmission of funds or data, over an electronic network. E-business is wider: it includes e-commerce but also covers internal processes such as inventory management, production planning, customer relationship management and enterprise resource planning, run with internet technologies. All e-commerce is e-business, but not all e-business is e-commerce. E-commerce is mainly transactional, while e-business changes the whole organisation.

Four benefits of e-commerce to a business:

  • a wider market, national and global
  • lower operating costs through automation
  • data-driven decisions on price, stock and marketing
  • customer convenience through 24-hour shopping and many payment options
Show the model answer to Question 12

(a) Four deployment choices. In-house development gives full customisation and control of data but is costly and slow. A cloud platform or SaaS is cost-effective and scalable, with hosting, security and upgrades included, though customisation is limited. Marketplace integration gives an instant audience with no infrastructure cost, but with commission fees and less control over branding and customer data.

A mobile-first approach suits markets where most people use mobile internet and mobile money, but needs good mobile design and payment links.

(b) Four challenges. Cybersecurity threats and data breaches. Logistics and fulfilment, especially where infrastructure is poor. Payment fraud and a trust gap caused by scams and failed deliveries. Technology cost, which is heavy for small firms. Others are regulation, digital literacy gaps and payment barriers.

(c) Hot and cold sites. A hot site is a fully equipped facility that mirrors the firm’s systems and can take over immediately. A cold site is a basic location that needs major set-up before it can be used, so recovery is slower but cost is lower.

Show the model answer to Question 13

Reasons for outsourcing. A firm may outsource to reduce cost, since specialists can do the work more cheaply; to gain skills it lacks, such as web development, payment processing or cybersecurity; to focus on its core business; and to scale quickly as demand grows.

Risks. The firm may lose control over quality and delivery; become dependent on the supplier; risk breaches of confidentiality when sharing customer data; face hidden costs or poor service; and find it hard to bring the work back in-house. The risks are managed by a clear contract with service level agreements and confidentiality terms, careful selection, regular reviews and an exit plan.

Pathfinder on e-commerce and e-business

These are the ICAN Pathfinder questions that test this topic. ICAN owns the questions and the suggested solutions, so we point you to them and do not copy them. Open your Pathfinder, attempt each question under exam conditions, then check your answer against the notes above.

Section A of each diet (multiple choice)

None of the diets mapped so far has a written question on this topic, so practise it through the multiple-choice questions. Check Section A of every diet for items on e-commerce models, deployment choices, outsourcing and disaster recovery.

Revise first: Exam focus: e-commerce infrastructure, models and payment systems

Source: ICAN Pathfinder, Business Environment. Diets covered: May Diet, 2021 to May Diet, 2026. November Diet, 2024 is not yet mapped.

Spotted a mistake? Tell us and we will check it.

Where this fits

See every past question on Business Environment and the topic each one tests in the Pathfinder question finder.

After it, move on to Financial Accounting.

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