Black Friday, Cyber Monday shoppers to focus on quality, timing this year: experts

This year the e-commerce heavyweight expects the Black Friday and Cyber Monday sales period to be just as frenzied, but something will be different: shoppers' moods.

Staff at his e-commerce software company Shopify Inc. start preparing for the big week during the summer by stress-testing systems and ensuring checkout will be as seamless as possible for the firm's thousands of merchants during the November shopping stretch.

"I don't sleep for that five-day period," said Finkelstein, Shopify's president.

"My wife knows about it. My kids know about it. I am in full Black Friday, Cyber Monday mode."