Shopify experienced instability for hours on one of the busiest shopping days of the year. Last year, it handled $11.5 billion between Black Friday and Cyber Monday.

"Shopify suffered an outage on Cyber Monday, freezing some merchants out of their accounts and point-of-sale systems during one of the busiest shopping days of the year. The financial impact is still unclear. A spokesperson directed Business Insider to the company's status page. Many small business owners posted on social media to tell shoppers that their shipping labels could not be generated and that they may experience issues during checkout."

"Outage tracker Downdetector showed a spike of roughly 4,000 problem reports at 11 a.m. ET, with thousands more pouring in around 1:15 p.m. ET. The Canadian e-commerce transaction giant said early afternoon on its status page that some sellers were "experiencing issues" with Shopify admin, Point of Sales, Mobile, and Shopify Support. By mid-afternoon, Shopify reported that services were recovering after engineers fixed an issue with the company's login authentication flow, though pockets of disruption remained."

Shopify experienced a service outage on Cyber Monday that blocked some merchants from accessing admin accounts and point-of-sale systems during peak shopping hours. Downdetector recorded spikes of roughly 4,000 problem reports around 11 a.m. ET and additional reports near 1:15 p.m. ET. Engineers identified and fixed an issue in the login authentication flow, allowing signs of recovery by mid-afternoon, but Point of Sale, API & Mobile, and Support continued with degraded performance into the evening. Small business owners reported inability to generate shipping labels and potential checkout issues. Shopify processes a significant share of U.S. e-commerce and saw its stock fall.

Read at Business Insider