Business-to-Business E-commerce Market size was valued at US$ 6.64 Tn. in 2021 and the total revenue is expected to grow at 18.6% through 2022 to 2029, reaching nearly US$ 25.99 Tn. Business-to-Business E-commerce Market Overview: Business-to-Business E-commerce Market size was valued at USD 6.6 Tn. in 2021. COVID-19 had a significant impact on the e-commerce business in early 2021. Customers' behaviour has altered dramatically in nations such as the United States, Germany, Italy, Spain, India, China, and Russia as a result of the lockdown. Due to the restrictions on public gatherings, online buying is preferred during this time.