Is Slack Down? Thousands of Users Report Mass Outage: 'Investigation Is Still in Progress' Slack acknowledged the outage and said it is investigating the issue.

By Erin Davis

Slack is down for thousands of users who began reporting problems around 9:30 a.m. EST to DownDetector.

According to Slack-Status, the messaging software company is aware of the issues and at 10:27 a.m. EST said it is "investigating reports of trouble connecting or loading Slack, we'll provide another update once we have news to share."

According to the company, 77 of the Fortune 100 use Slack messaging software. There are more than 10 million daily users.

Is Slack Still Down?

The company noted that there are problems "sending and receiving messages, and some threads loading are also impacted."

In a series of updates since the original post, Slack said that it is working to restore functionality to affected Slack features such as sending messages, workflows, threads, and other API-related features.

"Users may also experience issues when attempting to log in," the company wrote. "Thank you for your continued patience as we continue investigating. We'll be following up with further updates as they become available."

At 11:30 a.m. EST says that they are "still working to restore functionality."

An hour later around 12:30 p.m. EST, Slack said the issue was ongoing: "Our investigation is still in progress with regard to deprecated functionality for Slack features such as workflows, threads, sending messages, and API-related features. We'll be back with more updates as soon as they're available."

This story is ongoing and will be updated.

Related: 45 Ways to Master Slack While You're Working From Home

Erin Davis

Entrepreneur Staff

Trending News Writer

Want to be an Entrepreneur Leadership Network contributor? Apply now to join.

Business Ideas

70 Small Business Ideas to Start in 2025

We put together a list of the best, most profitable small business ideas for entrepreneurs to pursue in 2025.

Science & Technology

We Spent a Decade Building Virtual Worlds — What We Discovered Could Reshape the Future of Business

What we learned about scale, AI and ownership when we tried to connect thousands of people in real time.

Science & Technology

The Hidden Dangers of Using Generative AI in Your Business

Rushing to adopt generative AI can derail your business. Here's what leaders need to know.

Growing a Business

This One Leadership Move Will Transform Your Team's Loyalty and Performance

Most leaders focus on technical skills, but this lesser-known trait quietly shapes team loyalty, engagement and long-term performance.

Side Hustle

7 Ways Ecommerce Is Helping People Rebuild Their Lives

Ecommerce is more than just a business model. For many, it's about finding stability, freedom and a way to feel in control.

Growing a Business

There's a Hidden Cost of Overnight Growth — Here's What It Is and Why Slow and Steady Wins the Race

Growth that lasts isn't about the moment or the initial hype. It's about what happens in the months and years that follow.