Delivery :
Especially in cases of large or heavy products, delivery can be not only more convenient but also not require having or using a car. Not using or depending on personal vehicles, which can have substantial impact on the environment, to travel to local stores can make online shopping more sustainable than buying in local stores if such are used otherwise (especially if items are bundled and delivery vehicles are electric and use optimized routes). Moreover, the pace of urbanization, local delivery systems, and internet connectivity which facilitate the delivery process are the major determinants of e-commerce adoption

product Delivery :

Once a payment has been accepted, the goods or services can be delivered in the following ways. For physical items:

Package delivery: The product is shipped to a customer-designated address. Retail package delivery is typically done by the public postal system or a retail courier such as Redex, FedEx, UPS, DHL, or TNT.
Drop shipping: The order is passed to the manufacturer or third-party distributor, who then ships the item directly to the consumer, bypassing the retailer's physical location to save time, money, and space.
In-store pick-up: The customer selects a local store using a locator software and picks up the delivered product at the selected location. This is the method often used in the bricks and clicks business model.

Convenience

ABM Online stores are usually available 24 hours a day, and many consumers in Western countries have Internet access both at work and at home. Other establishments such as Internet cafes, community centers and schools provide internet access as well. In contrast, visiting a conventional retail store requires travel or commuting and costs such as gas, parking, or bus tickets, and must usually take place during business hours. Delivery was always a problem which affected the convenience of online shopping. Additionally, the online shopping industry has not only involved the concept of providing convenience for customers but also improved perceptions of social inclusion.[55] However to overcome this many retailers including online retailers in Taiwan brought in a store pick up service. This now meant that customers could purchase goods online and pick them up at a nearby convenience store, making online shopping more advantageous to customers.[56] In the event of a problem with the item (e.g., the product was not what the consumer ordered or the product was not satisfactory), consumers are concerned with the ease of returning an item in exchange for the correct product or a refund. Consumers may need to contact the retailer, visit the post office and pay return shipping, and then wait for a replacement or refund. Some online companies have more generous return policies to compensate for the traditional advantage of physical stores. For example, the online shoe retailer Zappos.com includes labels for free return shipping, and does not charge a restocking fee, even for returns which are not the result of merchant error. (Note: In the United Kingdom, online shops are prohibited from charging a restocking fee if the consumer cancels their order in accordance with the Consumer Protection (Distance Selling) Act 2000). A 2018 survey in the United States found 26% of online shoppers said they never return items, and another 65% said they rarely do so. Merchants may benefit from online shopping due to low sales inventory pressure, low operating costs, and the scale of operation is not limited by the site.

User interface
The most important factors determining whether customers return to a website are ease of use and the presence of user-friendly features.[51] Usability testing is important for finding problems and improvements in a web site. Methods for evaluating usability include heuristic evaluation, cognitive walkthrough, and user testing. Each technique has its own characteristics and emphasizes different aspects of the user experience.

payment :
Online shoppers commonly use a credit card or a PayPal account in order to make payments. However, some systems enable users to create accounts and pay by alternative means, such as:

Billing to mobile phones and landlines
Bitcoin or other cryptocurrencies
Cash on delivery (C.O.D.)
Cheque/ Check
Debit card
Direct debit in some countries
Electronic money of various types
Gift cards
Invoice, especially popular in some markets/countries, such as Switzerland
Postal money order
Wire transfer/delivery on payment

Some online shops will not accept international credit cards. Some require both the purchaser's billing and shipping address to be in the same country as the online shop's base of operation. Other online shops allow customers from any country to send gifts anywhere. The financial part of a transaction may be processed in real time (e.g. letting the consumer know their credit card was declined before they log off), or may be done later as part of the fulfillment process.