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On Thursday, November 12, 2026, at about 11 a.m. Eastern, Microsoft users around the world started losing access to Outlook. Within about an hour, Downdetector had logged reports from 74 countries and territories. Teams and Copilot were disrupted too, and by early Friday Microsoft said it had seen only “marginal success” restoring service more than 12 hours after the problems began. By Friday morning, Downdetector showed at least 43,000 Outlook problem reports from 72 countries.
Microsoft said there was no indication of a cyberattack and was rolling back a network change while it worked on recovery. For millions of businesses, that didn’t matter much in the moment. Email was down, chats were down and work stalled.
Here’s the part we’re proud of: CStoreOffice® stayed 100% up throughout the outage. Our customers kept closing shifts, receiving invoices, updating prices and checking store performance while much of the business world waited for email to come back.
Why uptime matters more in convenience retail than almost anywhere else
Most offices can survive a few hours without email. A convenience store can’t stop. NACS reports that the average store handled about 1,484 transactions a day in 2025, and the industry sold $341.2 billion inside the store and $476.3 billion in fuel. The store keeps moving whether your software does or not.
The timing made it worse. The outage hit right at the start of the season the NRF expects to bring $1.013 trillion in holiday spending, when traffic, travel and staffing pressures all go up.
How Petrosoft helps: CStoreOffice® is the same cloud back office we run in Petrosoft’s own 22 gas stations. When it stays up, shift reports, price changes, invoices and wet-stock reconciliation keep flowing, no matter what’s happening with your email.
What operators kept doing during the outage
- Closing shifts and reconciling cash in CStoreOffice®.
- Receiving vendor invoices through EDI purchasing and updating costs.
- Pushing price changes to SmartPOS registers.
- Watching fuel inventory and ATG-integrated wet-stock reconciliation.
- Checking store and fuel performance on the go in Retail360.
- Reviewing exceptions with Eagle Eye video tied to transactions.
Lessons for every c-store operator
1. Don’t run your store through your inbox
If price changes, invoices or shift reports depend on email attachments and spreadsheets, an email outage becomes a store outage. Keep operational data in a dedicated store system.
How Petrosoft helps: CStoreOffice® keeps your price book, invoices, shift data and accounting in one place, so store operations don’t depend on email or shared files.
2. Know who to call, and how, when systems go down
When Teams and Outlook go down together, many teams lose both their main ways to communicate. Keep a simple backup plan: phone numbers, a text group and a written list of who handles what.
3. Make sure you can see the store from anywhere
Owners and district managers still need answers during a disruption.
How Petrosoft helps: Retail360 puts store and fuel performance on your phone, so you can check sales, fuel and exceptions without logging in to anything else.
4. Every dollar still counts
Disruptions don’t pause your costs. The NRF reports U.S. businesses paid $198.25 billion in swipe fees in 2025, and NACS reports c-stores paid a record $21.3 billion. Your margin controls need to keep working every hour of every day.
How Petrosoft helps: SmartPOS feeds every sale into CStoreOffice®, and Eagle Eye ties video to SmartPOS transactions, so cash, voids and refunds stay under control even on a chaotic day. QwickServe kiosk orders flow into the same back office.
Your business-continuity checklist
- Move store operations out of email and spreadsheets and into CStoreOffice®.
- Keep a backup contact plan that doesn’t rely on Outlook or Teams.
- Give owners and managers Retail360 for mobile visibility.
- Make sure every register is a SmartPOS connected to your back office.
- Review Eagle Eye exceptions after any disruption.
Frequently asked questions
What happened in the November 2026 Microsoft outage?
Starting November 12, 2026, users worldwide lost access to Outlook, and Teams and Copilot were also disrupted. Downdetector logged reports from 74 countries and territories within about an hour. Microsoft said there was no indication of a cyberattack.
Was CStoreOffice affected by the Microsoft outage?
No. CStoreOffice® remained 100% available throughout the outage, and Petrosoft customers continued running their stores as usual.
Why does back-office uptime matter for convenience stores?
Convenience stores never stop. NACS reports the average store handled about 1,484 transactions a day in 2025. Shift reports, pricing, invoices and fuel reconciliation need to keep working every day.
How can a c-store prepare for technology outages?
Keep store operations in a dedicated back-office system instead of email and spreadsheets, have a backup way to reach your team and make sure owners can see store performance from their phones with tools like Retail360.
Does Petrosoft use CStoreOffice in its own stores?
Yes. Petrosoft operates 22 gas stations and runs CStoreOffice®, SmartPOS, Retail360, QwickServe and Eagle Eye in them.
Want a back office that keeps working when other systems don’t? See CStoreOffice® in action. Book a live, no-pressure demo at petrosoftinc.com.
Sources
- Al Jazeera, “Microsoft hit by global outages: What happened and why?” (November 13, 2026): https://www.aljazeera.com/news/2026/11/13/microsoft-hit-by-global-outages-what-happened-and-why
- NACS, “U.S. Convenience In-Store Sales Top $340 Billion” (State of the Industry, April 2026): https://www.convenience.org/stay-current/news/2026/april/15/u-s-convenience-in-store-sales-top-$340-billion
- NRF, “NRF Forecasts 2026 Holiday Sales Growth as Consumers Remain Resilient” (October 15, 2026): https://nrf.com/media-center/press-releases/nrf-forecasts-2026-holiday-sales-growth-as-consumers-remain-resilient
- NRF, Swipe Fees policy page (2025 data): https://nrf.com/advocacy/policy-issues/swipe-fees
