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Shopify suffered an outage on Cyber Monday, leaving some businesses unable to manage transactions on one of the biggest shopping days of the year.
In an update to its status page, the Canadian e-commerce company said some merchants are experiencing problems logging into Shopify, and others are unable to access their POS system, a critical portal for managing transactions and other back-end processes.
Later in the day, Shopify said its service was starting to recover, but some merchants may still see some disruption to their POS and management tools.
“We have discovered and fixed an issue with the login authentication flow, and the admin and POS login issues are now showing signs of recovery,” the company said in an update at 2:31 p.m. ET. “We continue to monitor the recovery.”
When asked for comment, a Shopify spokesperson pointed CNBC to the status page.
The Downdetector website showed thousands of users reporting issues with Shopify around 1:15 p.m. ET, after users reported about 4,000 cases during the 11 a.m. ET peak.
Shopify sells software and services such as advertising and payment processing tools for merchants who run online businesses.
Shopify says it processes more than 10% of all e-commerce transactions in the U.S.
The company made a name for itself as a platform for small businesses and direct-to-consumer brands, but Reebok, mattelBarnes & Noble, and Nestlé.
The outage coincided with the Cyber Monday discount craze, when holiday shoppers rushed to buy discounted items. Adobe Analytics predicts that U.S. shoppers will spend $14.2 billion online on Monday, an increase of 6.3% from a year ago.
Adobe said U.S. shoppers spent $11.8 billion on Black Friday, an increase of 9.1% from last year.
Shopify President Harley Finkelstein announced Saturday that the company’s total Black Friday sales totaled $6.2 billion, an increase of 25% from a year ago. Finkelstein noted that cosmetics, activewear, fitness and nutrition are among the top product categories.
But some investors were disappointed by the results. Oppenheimer analysts said they expected “some negative reaction” as sales growth “was below consensus expectations for fourth-quarter GMV growth” of 28% year over year.
Shopify stock closed down 5.8% on Monday.

