the reasons why Business to Business marketing concepts have special and unique principles in the application of marketing strategies :
1.The business to business has a complex decision-making unit 
2. The Business to Business buyers is more rational than the Business to Consumer buyers 
3. Business to Business product is often more complex with a limited number of buying 
4. Personal Relationship is more important in B2B Markets .
Impact of the COVID-19 on global business:
a) Supply chain company distortion.
b) External and internal company focus
c) Annual and strategic planning
d) Financial ability falls short