Workday restored its HR and payroll service by 11 a.m. EST on Saturday, 14 November, a Workday spokesperson said in a statement reported by the Associated Press. The spokesperson said the outage was not related to a cybersecurity incident and affected two of the company’s data centers. Emerson College, a customer, says Workday took its system offline at approximately 5:15 p.m. ET on Friday.
By our arithmetic from those two timestamps, the outage lasted about 18 hours, or 1,065 minutes. A Workday service level policy filed in a City of Palm Desert agenda packet commits to 99.9% availability a month, which leaves about 42 minutes of unplanned outage in November, also by our arithmetic.
Business Pill · Embedded Dependency
A short explainer on embedded dependency: what sits inside the systems you buy. It teaches the general idea only and does not discuss Workday or the outage.
The key insight: As we read it, the gap between the two numbers is the story: a 99.9% monthly availability commitment leaves about 42 minutes of unplanned outage in November, and by our arithmetic from Emerson College’s and Workday’s timestamps the outage ran 1,065 minutes.
“We recognize the critical services we provide to our customers and their workforces, and we sincerely apologize for this outage,” the spokesperson said, the AP reported. The company said it is communicating directly with customers as services come back online. The AP said it was not clear how many customers were affected.
A notice on Workday’s Community status page, quoted by Washington University IT and reported by UC Today, gave the cause: tenanted services in the disaster recovery site “unexpectedly connected to Production databases”. The notice said this “left data in an inconsistent state”. Workday said it was placing all WD1 production tenants into maintenance, UC Today reported.
Minutes of the 13-14 November Workday outage against the unplanned outage a 99.9% monthly availability commitment leaves in November. Both figures are our arithmetic from Emerson College’s and Workday’s timestamps and the SLA text.
The 18-Hour Count
Emerson College’s status page says Workday, the vendor, took the system offline at approximately 5:15 p.m. ET on 13 November for urgent maintenance that “was not planned or scheduled by Emerson”. Emerson marked the incident resolved at 10:27 a.m. EST on 14 November.
From 5:15 p.m. ET on Friday to 11 a.m. EST on Saturday is 17 hours and 45 minutes, by our arithmetic. The San Francisco Chronicle also reported that a spokesperson said service had been restored as of 11 a.m. on Saturday.
What the SLA Text Says
The policy in the Palm Desert packet states: “Workday’s Service Availability commitment for a given calendar month is 99.9%”. It counts an unplanned outage as minutes the service is not available outside the planned maintenance window, and says that if actual maintenance exceeds the time allotted, “it is considered an Unplanned Outage”.
November has 43,200 minutes. Taking out the policy’s planned maintenance, three hours each Saturday plus four hours monthly, a 99.9% target leaves about 42 minutes of unplanned outage, by our arithmetic. The 1,065 minutes are about 25 times that; if a full three-hour weekly window fell inside the outage and is excluded, the multiple is about 21.
The same policy sets a disaster recovery “recovery time objective of 12 hours”, measured from the time the production tenant becomes unavailable until it is available again. The outage ran about six hours longer than that figure, by our arithmetic.
The Structural Read
As we read the SLA text, its own rule settles one point: maintenance that runs past the planned window is considered an unplanned outage, so calling the downtime maintenance does not by itself take it out of the availability count. Whether Workday counts it for each customer is not established.
As we read the statements, scope is still open: Workday says two data centers were affected and the AP says it was not clear how many customers were, so the 11,500-customer figure in earlier coverage is a customer count, not an impact count.
Workday spokesperson, statement reported by the Associated Press, 14 November 2026
“We recognize the critical services we provide to our customers and their workforces, and we sincerely apologize for this outage”
Three Implications
FOR HR AND PAYROLL TEAMS Emerson College kept its open enrollment open until 12 noon ET on Monday, 16 November, its status page says.
FOR CONTRACT OWNERS The SLA text sets a 12-hour disaster recovery time objective and a 99.9% monthly availability commitment; customer contracts can differ.
FOR IT BUYERS This followed the Microsoft 365 outage we covered a day earlier; no source links the two.
The framework says: “The value proposition shifts from features to integration depth.”
As we read it, an 18-hour outage prices that depth from the other side: Emerson College says it had to extend open enrollment while Workday was offline. The framework predates this outage and does not discuss Workday.
Outage hours, our arithmetic from Emerson College’s and Workday’s timestamps, against the 12-hour recovery time objective in the SLA copy filed in a City of Palm Desert packet.
What Is Not Established
Workday has not published a post-incident review, and its status page requires a customer login, so we could not read it directly. Its latest SEC filing is dated 23 October, before the outage. The SLA copy we read is one filed by a single city; customers’ contracts can differ, and we do not know which terms apply to which customer, whether Workday counts this event against its availability commitment, or whether any credits will be paid.
The 5:15 p.m. start is Emerson’s account, and the outage may have started earlier or later for other customers. Workday was not contacted for this piece.
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Workday said it restored service by 11 a.m. EST on 14 November after an outage it said was not a cyber incident and that affected two data centers. From Emerson College’s 5:15 p.m. ET offline time, that is about 18 hours, by our arithmetic, against about 42 minutes a month that a 99.9% availability commitment leaves. We first covered the outage in Workday Outage: Backup Test Fault Hits a $27M-a-Day Service.
A note on sourcing. Restoration time, the data-center count and the cyber statement come from a Workday spokesperson’s statement as reported by the Associated Press on 14 November. The offline time comes from Emerson College’s IT status page. The status-page cause wording is as quoted by Washington University IT and reported by UC Today; Workday’s own status page requires a login and was not read.
The SLA text is the copy filed in a City of Palm Desert agenda packet; customer contracts can differ. Durations, the 42-minute allowance and the multiples are our arithmetic. Workday was not contacted for this piece.
Gennaro Cuofano is a CRO and tech executive who has worked in AI since late 2015, starting with bringing NLP, natural-language generation, voice and chatbot products to the marketing industry. His background is in law and finance: he holds a Master's degree in Law and an International MBA with an emphasis on corporate finance (LUISS Business School and the University of San Diego, 2012), and worked as a financial analyst at a real-estate investment firm in San Diego and as an assistant controller. His work focuses on business model strategy, business engineering and, more broadly, structural analysis: how companies make money, read from their own filings. He created FourWeekMBA and leads research there and at The Business Engineer, his newsletter on AI and business strategy, with over 95,000 subscribers and more than 1,000 published analyses. His writing has also appeared on Entrepreneur (for example, How to Digitize a Family Business in Europe) and HackerNoon. Find him on LinkedIn and Substack. See how we source.
