Maintenance
Incident
Notice
Outage
99.996% uptime
S
M
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W
T
F
S
April 1, 2018
No incidents, outages or maintenance.
April 2, 2018
No incidents, outages or maintenance.
April 3, 2018
Problems with account and workspace settings updates
Resolved 12:59 AM PDT
April 4, 2018
Connectivity issues for some workspaces
Resolved 11:43 AM PDT
April 5, 2018
Connection issues affecting some workspaces
Resolved 2:53 PM PDT
Connectivity problems
Resolved 7:01 AM PDT
April 6, 2018
No incidents, outages or maintenance.
April 7, 2018
No incidents, outages or maintenance.
April 8, 2018
No incidents, outages or maintenance.
April 9, 2018
No incidents, outages or maintenance.
April 10, 2018
Connectivity issues for some workspaces in Europe
Resolved 12:30 PM PDT
April 11, 2018
Connectivity trouble affecting some workspaces
Resolved 2:48 PM PDT
April 12, 2018
Connectivity issues affecting some workspaces
Resolved 12:05 PM PDT
April 13, 2018
No incidents, outages or maintenance.
April 14, 2018
No incidents, outages or maintenance.
April 15, 2018
No incidents, outages or maintenance.
April 16, 2018
Duplicate notification issues
Resolved 9:12 PM PDT
April 17, 2018
Connectivity trouble for some workspaces
Resolved 6:59 AM PDT
Connectivity issues for some workspaces
Resolved 1:11 PM PDT
April 18, 2018
No incidents, outages or maintenance.
April 19, 2018
No incidents, outages or maintenance.
April 20, 2018
Connectivity issues affecting some workspaces
Resolved 7:52 AM PDT
April 21, 2018
No incidents, outages or maintenance.
April 22, 2018
Connectivity trouble affecting some workspaces
Resolved 1:45 AM PDT
99.99% uptime
S
M
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W
T
F
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March 1, 2018
Current plan displayed incorrectly on pricing page.
Resolved 12:03 AM PST
March 2, 2018
Reports of Slack being down
Resolved 1:57 PM PST
Connection problems
Resolved 7:21 AM PST
March 3, 2018
Problems generating tokens on Slack API
Resolved 12:54 AM PST
March 4, 2018
No incidents, outages or maintenance.
March 5, 2018
Problems adding Google Calendar app
Resolved 8:54 PM PST
March 6, 2018
No incidents, outages or maintenance.
March 7, 2018
Connectivity issues
Resolved 1:26 PM PST
Connection issues
Resolved 6:19 AM PST
March 8, 2018
Spacing issues in Slack
Resolved 7:20 AM PST
March 9, 2018
Connectivity problems
Resolved 12:01 PM PST
March 10, 2018
No incidents, outages or maintenance.
March 11, 2018
No incidents, outages or maintenance.
March 12, 2018
A few workspaces are having trouble connecting
Resolved 11:16 AM PDT
March 13, 2018
Problems with message search
Resolved 12:27 PM PDT
User search issues for some workspaces
Resolved 9:18 AM PDT
March 14, 2018
Connectivity issues for some users in Russia
Resolved 7:35 AM PDT
March 15, 2018
No incidents, outages or maintenance.
March 16, 2018
No incidents, outages or maintenance.
March 17, 2018
iOS notification issues for some workspaces
Resolved 8:55 AM PDT
March 18, 2018
No incidents, outages or maintenance.
March 19, 2018
No incidents, outages or maintenance.
March 20, 2018
No incidents, outages or maintenance.
March 21, 2018
No incidents, outages or maintenance.
March 22, 2018
No incidents, outages or maintenance.
March 23, 2018
No incidents, outages or maintenance.
March 24, 2018
No incidents, outages or maintenance.
March 25, 2018
No incidents, outages or maintenance.
March 26, 2018
Connectivity issues affecting some workspaces
Resolved 1:38 PM PDT
March 27, 2018
Search issues for some workspaces
Resolved 12:35 AM PDT
March 28, 2018
Users unable to deactivate their own accounts
Resolved 2:22 AM PDT
March 29, 2018
No incidents, outages or maintenance.
March 30, 2018
No incidents, outages or maintenance.
March 31, 2018
No incidents, outages or maintenance.
100% uptime
S
M
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W
T
F
S
February 1, 2018
No incidents, outages or maintenance.
February 2, 2018
No incidents, outages or maintenance.
February 3, 2018
No incidents, outages or maintenance.
February 4, 2018
No incidents, outages or maintenance.
February 5, 2018
No incidents, outages or maintenance.
February 6, 2018
No incidents, outages or maintenance.
February 7, 2018
No incidents, outages or maintenance.
February 8, 2018
No incidents, outages or maintenance.
February 9, 2018
Slowness with link previews, search, message sending, and the Events API
Resolved 2:11 PM PST
Please refresh Slack if you're seeing issues with Do Not Disturb
Resolved 10:33 AM PST
February 10, 2018
No incidents, outages or maintenance.
February 11, 2018
No incidents, outages or maintenance.
February 12, 2018
Notification issues
Resolved 4:36 PM PST
February 13, 2018
No incidents, outages or maintenance.
February 14, 2018
No incidents, outages or maintenance.
February 15, 2018
GIF Keyboard app not working
Resolved 11:41 AM PST
February 16, 2018
No incidents, outages or maintenance.
February 17, 2018
No incidents, outages or maintenance.
February 18, 2018
No incidents, outages or maintenance.
February 19, 2018
Trouble with search
Resolved 9:38 PM PST
February 20, 2018
Presence indicator showing wrong status
Resolved 3:40 AM PST
February 21, 2018
No incidents, outages or maintenance.
February 22, 2018
No incidents, outages or maintenance.
February 23, 2018
Notification issues
Resolved 5:06 PM PST
Slack Calls failing on Enterprise Grid
Resolved 11:56 AM PST
Do Not Disturb settings not respected
Resolved 7:39 AM PST
February 24, 2018
No incidents, outages or maintenance.
February 25, 2018
No incidents, outages or maintenance.
February 26, 2018
Incorrect member counts in the channel browser
Resolved 10:42 PM PST
February 27, 2018
The Japanese version of Slack is having connection troubles
Resolved 3:53 PM PST
February 28, 2018
Problems finding members in DM or search.
Resolved 11:58 PM PST
99.9% uptime
S
M
T
W
T
F
S
January 1, 2018
No incidents, outages or maintenance.
January 2, 2018
No incidents, outages or maintenance.
January 3, 2018
Connectivity issues for some workspaces
Resolved 5:56 PM PST
January 4, 2018
No incidents, outages or maintenance.
January 5, 2018
No incidents, outages or maintenance.
January 6, 2018
No incidents, outages or maintenance.
January 7, 2018
No incidents, outages or maintenance.
January 8, 2018
Desktop app server error for some users
Resolved 8:10 PM PST
January 9, 2018
Connectivity issues for all customers
Resolved 12:28 PM PST
January 10, 2018
Connectivity issues for some workspaces
Resolved 10:23 PM PST
January 11, 2018
No incidents, outages or maintenance.
January 12, 2018
No incidents, outages or maintenance.
January 13, 2018
No incidents, outages or maintenance.
January 14, 2018
No incidents, outages or maintenance.
January 15, 2018
No incidents, outages or maintenance.
January 16, 2018
No incidents, outages or maintenance.
January 17, 2018
No incidents, outages or maintenance.
January 18, 2018
No incidents, outages or maintenance.
January 19, 2018
No incidents, outages or maintenance.
January 20, 2018
No incidents, outages or maintenance.
January 21, 2018
No incidents, outages or maintenance.
January 22, 2018
Image uploads appearing broken for some users
Resolved 10:58 AM PST
January 23, 2018
No incidents, outages or maintenance.
January 24, 2018
No incidents, outages or maintenance.
January 25, 2018
Issues with search
Resolved 10:28 AM PST
Connectivity issues for some users, mainly in India
Resolved 3:38 AM PST
January 26, 2018
No incidents, outages or maintenance.
January 27, 2018
No incidents, outages or maintenance.
January 28, 2018
No incidents, outages or maintenance.
January 29, 2018
No incidents, outages or maintenance.
January 30, 2018
Connectivity issues for some workspaces
Resolved 10:06 PM PST
January 31, 2018
Notification delivery issues
Resolved 7:42 PM PST
Email sending trouble
Resolved 2:26 PM PST
Connectivity issues for some workspaces
Resolved 2:04 PM PST
Connection issues in North America
Resolved 6:36 AM PST
100% uptime
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F
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December 1, 2017
Problem with Private Channels and Direct Messages
Resolved 10:49 AM PST
December 2, 2017
No incidents, outages or maintenance.
December 3, 2017
No incidents, outages or maintenance.
December 4, 2017
No incidents, outages or maintenance.
December 5, 2017
No incidents, outages or maintenance.
December 6, 2017
No incidents, outages or maintenance.
December 7, 2017
No incidents, outages or maintenance.
December 8, 2017
No incidents, outages or maintenance.
December 9, 2017
No incidents, outages or maintenance.
December 10, 2017
No incidents, outages or maintenance.
December 11, 2017
No incidents, outages or maintenance.
December 12, 2017
No incidents, outages or maintenance.
December 13, 2017
No incidents, outages or maintenance.
December 14, 2017
No incidents, outages or maintenance.
December 15, 2017
Connectivity issues for some workspaces
Resolved 2:46 PM PST
Problems with loading workspaces, link previews, and slackbot responses
Resolved 11:21 AM PST
December 16, 2017
No incidents, outages or maintenance.
December 17, 2017
No incidents, outages or maintenance.
December 18, 2017
No incidents, outages or maintenance.
December 19, 2017
Slack is running slowly for some workspaces
Resolved 12:27 PM PST
December 20, 2017
No incidents, outages or maintenance.
December 21, 2017
No incidents, outages or maintenance.
December 22, 2017
No incidents, outages or maintenance.
December 23, 2017
No incidents, outages or maintenance.
December 24, 2017
No incidents, outages or maintenance.
December 25, 2017
No incidents, outages or maintenance.
December 26, 2017
No incidents, outages or maintenance.
December 27, 2017
No incidents, outages or maintenance.
December 28, 2017
No incidents, outages or maintenance.
December 29, 2017
No incidents, outages or maintenance.
December 30, 2017
No incidents, outages or maintenance.
December 31, 2017
No incidents, outages or maintenance.
100% uptime
S
M
T
W
T
F
S
November 1, 2017
No incidents, outages or maintenance.
November 2, 2017
No incidents, outages or maintenance.
November 3, 2017
No incidents, outages or maintenance.
November 4, 2017
No incidents, outages or maintenance.
November 5, 2017
No incidents, outages or maintenance.
November 6, 2017
Connection issues for some workspaces
Resolved 4:37 PM PST
Connectivity issues for some workspaces
Resolved 1:42 PM PST
November 7, 2017
No incidents, outages or maintenance.
November 8, 2017
No incidents, outages or maintenance.
November 9, 2017
No incidents, outages or maintenance.
November 10, 2017
No incidents, outages or maintenance.
November 11, 2017
No incidents, outages or maintenance.
November 12, 2017
No incidents, outages or maintenance.
November 13, 2017
No incidents, outages or maintenance.
November 14, 2017
Difficulty connecting affecting some users
Resolved 12:47 PM PST
November 15, 2017
ISP-specific connectivity troubles (Europe)
Resolved 7:12 AM PST
November 16, 2017
Trouble connecting from South America
Resolved 7:09 AM PST
Investigating connectivity issues
Resolved 5:54 AM PST
November 17, 2017
No incidents, outages or maintenance.
November 18, 2017
No incidents, outages or maintenance.
November 19, 2017
No incidents, outages or maintenance.
November 20, 2017
No incidents, outages or maintenance.
November 21, 2017
Connectivity trouble in Europe
Resolved 12:16 PM PST
November 22, 2017
No incidents, outages or maintenance.
November 23, 2017
Calls issues for some users in Europe
Resolved 9:00 AM PST
November 24, 2017
No incidents, outages or maintenance.
November 25, 2017
No incidents, outages or maintenance.
November 26, 2017
No incidents, outages or maintenance.
November 27, 2017
Email delivery issues
Resolved 12:22 PM PST
November 28, 2017
No incidents, outages or maintenance.
November 29, 2017
No incidents, outages or maintenance.
November 30, 2017
No incidents, outages or maintenance.
99.75% uptime
S
M
T
W
T
F
S
October 1, 2017
No incidents, outages or maintenance.
October 2, 2017
Connectivity troubles for some workspaces
Resolved 8:15 PM PDT
Message server issues
Resolved 2:46 AM PDT
October 3, 2017
ISP-specific connection issues in Canada
Resolved 1:09 PM PDT
October 4, 2017
No incidents, outages or maintenance.
October 5, 2017
No incidents, outages or maintenance.
October 6, 2017
No incidents, outages or maintenance.
October 7, 2017
No incidents, outages or maintenance.
October 8, 2017
No incidents, outages or maintenance.
October 9, 2017
No incidents, outages or maintenance.
October 10, 2017
Connectivity trouble affecting some workspaces
Resolved 8:34 PM PDT
October 11, 2017
No incidents, outages or maintenance.
October 12, 2017
Problems with media previews, Slackbot and payments
Resolved 5:29 AM PDT
October 13, 2017
No incidents, outages or maintenance.
October 14, 2017
No incidents, outages or maintenance.
October 15, 2017
No incidents, outages or maintenance.
October 16, 2017
No incidents, outages or maintenance.
October 17, 2017
Connectivity issues for some workspaces in Europe
Resolved 4:24 AM PDT
October 18, 2017
No incidents, outages or maintenance.
October 19, 2017
Impossible to join or create workspaces in international versions of Slack
Resolved 1:06 PM PDT
October 20, 2017
Events API Delays
Resolved 3:35 PM PDT
October 21, 2017
No incidents, outages or maintenance.
October 22, 2017
No incidents, outages or maintenance.
October 23, 2017
Connectivity trouble affecting some workspaces
Resolved 12:30 AM PDT
Problems with SMS 2FA login
Resolved 12:03 PM PDT
October 24, 2017
Connectivity issues for users on older browser versions of Safari
Resolved 8:25 PM PDT
Connectivity for some Organizations
Resolved 9:49 AM PDT
October 25, 2017
No incidents, outages or maintenance.
October 26, 2017
No incidents, outages or maintenance.
October 27, 2017
No incidents, outages or maintenance.
October 28, 2017
No incidents, outages or maintenance.
99.998% uptime
S
M
T
W
T
F
S
September 1, 2017
No incidents, outages or maintenance.
September 2, 2017
No incidents, outages or maintenance.
September 3, 2017
No incidents, outages or maintenance.
September 4, 2017
Problems with Slack emails
Resolved 7:41 AM PDT
Calls connection difficulties in Europe
Resolved 2:33 AM PDT
September 5, 2017
Calls issues in Europe (part II)
Resolved 3:14 AM PDT
September 6, 2017
Connectivity trouble affecting some workspaces
Resolved 8:37 AM PDT
September 7, 2017
Connection issues for some workspaces
Resolved 1:49 PM PDT
September 8, 2017
No incidents, outages or maintenance.
September 9, 2017
No incidents, outages or maintenance.
September 10, 2017
No incidents, outages or maintenance.
September 11, 2017
Connectivity trouble affecting some workspaces
Resolved 8:42 PM PDT
September 12, 2017
No incidents, outages or maintenance.
September 13, 2017
No incidents, outages or maintenance.
September 14, 2017
Connection & file upload issues across some workspaces
Resolved 11:42 AM PDT
September 15, 2017
No incidents, outages or maintenance.
September 16, 2017
No incidents, outages or maintenance.
September 17, 2017
No incidents, outages or maintenance.
September 18, 2017
Connection issues for one team
Resolved 1:25 PM PDT
Slowness for some customers
Resolved 3:08 PM PDT
September 19, 2017
Service interruptions for a variety of features & joining workspaces
Resolved 12:35 PM PDT
September 20, 2017
Sign-in issues with Slack
Resolved 6:24 PM PDT
September 21, 2017
No incidents, outages or maintenance.
September 22, 2017
Connectivity issues affecting some workspaces
Resolved 12:48 PM PDT
Scattered connectivity problems
Resolved 2:03 AM PDT
Connectivity Issues
Resolved 12:29 AM PDT
September 23, 2017
No incidents, outages or maintenance.
September 24, 2017
No incidents, outages or maintenance.
September 25, 2017
Connectivity troubles for some workspaces
Resolved 3:51 PM PDT
September 26, 2017
No incidents, outages or maintenance.
September 27, 2017
Connection troubles for some workspaces
Resolved 11:20 AM PDT
September 28, 2017
No incidents, outages or maintenance.
September 29, 2017
No incidents, outages or maintenance.
September 30, 2017
No incidents, outages or maintenance.
99.98% uptime
S
M
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W
T
F
S
August 1, 2017
No incidents, outages or maintenance.
August 2, 2017
Slowdown in service
Resolved 5:48 PM PDT
August 3, 2017
No incidents, outages or maintenance.
August 4, 2017
No incidents, outages or maintenance.
August 5, 2017
No incidents, outages or maintenance.
August 6, 2017
No incidents, outages or maintenance.
August 7, 2017
No incidents, outages or maintenance.
August 8, 2017
No incidents, outages or maintenance.
August 9, 2017
No incidents, outages or maintenance.
August 10, 2017
No incidents, outages or maintenance.
August 11, 2017
No incidents, outages or maintenance.
August 12, 2017
No incidents, outages or maintenance.
August 13, 2017
No incidents, outages or maintenance.
August 14, 2017
No incidents, outages or maintenance.
August 15, 2017
No incidents, outages or maintenance.
August 16, 2017
No incidents, outages or maintenance.
August 17, 2017
No incidents, outages or maintenance.
August 18, 2017
Slowdown in service
Resolved 3:49 PM PDT
August 19, 2017
Connection problems for some teams
Resolved 3:07 PM PDT
August 20, 2017
No incidents, outages or maintenance.
August 21, 2017
No incidents, outages or maintenance.
August 22, 2017
Issues with emoji reactions and editing messages
Resolved 11:59 AM PDT
Connectivity problems and performance issues
Resolved 7:20 AM PDT
August 23, 2017
No incidents, outages or maintenance.
August 24, 2017
Connection problems for some teams
Resolved 11:53 PM PDT
August 25, 2017
No incidents, outages or maintenance.
August 26, 2017
No incidents, outages or maintenance.
August 27, 2017
No incidents, outages or maintenance.
August 28, 2017
Connection & messaging issues for some teams
Resolved 2:14 PM PDT
August 29, 2017
Connectivity & messaging issues
Resolved 2:50 PM PDT
August 30, 2017
No incidents, outages or maintenance.
August 31, 2017
No incidents, outages or maintenance.
99.997% uptime
S
M
T
W
T
F
S
July 1, 2017
No incidents, outages or maintenance.
July 2, 2017
No incidents, outages or maintenance.
July 3, 2017
No incidents, outages or maintenance.
July 4, 2017
No incidents, outages or maintenance.
July 5, 2017
Connectivity issues affecting some teams
Resolved 5:16 PM PDT
July 6, 2017
No incidents, outages or maintenance.
July 7, 2017
No incidents, outages or maintenance.
July 8, 2017
No incidents, outages or maintenance.
July 9, 2017
No incidents, outages or maintenance.
July 10, 2017
No incidents, outages or maintenance.
July 11, 2017
File uploads are failing
Resolved 5:33 PM PDT
Intermittent slowness with Slack
Resolved 5:04 AM PDT
July 12, 2017
Connectivity issues for some teams
Resolved 5:42 AM PDT
July 13, 2017
Connectivity issues
Resolved 12:47 PM PDT
July 14, 2017
No incidents, outages or maintenance.
July 15, 2017
No incidents, outages or maintenance.
July 16, 2017
No incidents, outages or maintenance.
July 17, 2017
No incidents, outages or maintenance.
July 18, 2017
No incidents, outages or maintenance.
July 19, 2017
No incidents, outages or maintenance.
July 20, 2017
Login issues on desktop apps
Resolved 8:44 AM PDT
July 21, 2017
No incidents, outages or maintenance.
July 22, 2017
No incidents, outages or maintenance.
July 23, 2017
No incidents, outages or maintenance.
July 24, 2017
No incidents, outages or maintenance.
July 25, 2017
Degraded functionality
Resolved 9:56 AM PDT
July 26, 2017
Connectivity issues
Resolved 4:05 AM PDT
July 27, 2017
Connectivity issues affecting some teams
Resolved 5:58 PM PDT
Connectivity and performance trouble
Resolved 8:41 AM PDT
July 28, 2017
Outgoing email issues
Resolved 10:52 AM PDT
July 29, 2017
Connectivity issues affecting some teams
Resolved 11:06 AM PDT
99.993% uptime
S
M
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W
T
F
S
June 1, 2017
No incidents, outages or maintenance.
June 2, 2017
No incidents, outages or maintenance.
June 3, 2017
No incidents, outages or maintenance.
June 4, 2017
Connectivity issues affecting some teams
Resolved 10:03 PM PDT
June 5, 2017
Integrations and unfurls are delayed
Resolved 12:37 PM PDT
June 6, 2017
Connectivity Issues
Resolved 2:20 PM PDT
June 7, 2017
No incidents, outages or maintenance.
June 8, 2017
Reports of ISP routing issues in New York
Resolved 10:42 AM PDT
June 9, 2017
No incidents, outages or maintenance.
June 10, 2017
No incidents, outages or maintenance.
June 11, 2017
No incidents, outages or maintenance.
June 12, 2017
No incidents, outages or maintenance.
June 13, 2017
Display/rendering issues
Resolved 6:23 PM PDT
June 14, 2017
No incidents, outages or maintenance.
June 15, 2017
Connectivity issues affecting certain users
Resolved 4:57 PM PDT
Mobile push notifications not being received
Resolved 4:30 AM PDT
June 16, 2017
No incidents, outages or maintenance.
June 17, 2017
No incidents, outages or maintenance.
June 18, 2017
No incidents, outages or maintenance.
June 19, 2017
Connectivity issues affecting some teams
Resolved 1:41 PM PDT
June 20, 2017
No incidents, outages or maintenance.
June 21, 2017
No incidents, outages or maintenance.
June 22, 2017
No incidents, outages or maintenance.
June 23, 2017
Enterprise SSL Issues
Resolved 6:39 PM PDT
June 24, 2017
No incidents, outages or maintenance.
June 25, 2017
No incidents, outages or maintenance.
June 26, 2017
No incidents, outages or maintenance.
June 27, 2017
No incidents, outages or maintenance.
June 28, 2017
Slowness with Slack
Resolved 7:28 AM PDT
June 29, 2017
No incidents, outages or maintenance.
June 30, 2017
No incidents, outages or maintenance.
99.994% uptime
S
M
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W
T
F
S
May 1, 2017
No incidents, outages or maintenance.
May 2, 2017
Posts are slow to load
Resolved 9:52 AM PDT
May 3, 2017
No incidents, outages or maintenance.
May 4, 2017
No incidents, outages or maintenance.
May 5, 2017
No incidents, outages or maintenance.
May 6, 2017
No incidents, outages or maintenance.
May 7, 2017
No incidents, outages or maintenance.
May 8, 2017
No incidents, outages or maintenance.
May 9, 2017
No incidents, outages or maintenance.
May 10, 2017
Problems with our CDN provider
Resolved 6:57 AM PDT
May 11, 2017
No incidents, outages or maintenance.
May 12, 2017
No incidents, outages or maintenance.
May 13, 2017
No incidents, outages or maintenance.
May 14, 2017
No incidents, outages or maintenance.
May 15, 2017
No incidents, outages or maintenance.
May 16, 2017
No incidents, outages or maintenance.
May 17, 2017
No incidents, outages or maintenance.
May 18, 2017
Connectivity issues affecting some teams
Resolved 4:17 PM PDT
May 19, 2017
No incidents, outages or maintenance.
May 20, 2017
No incidents, outages or maintenance.
May 21, 2017
No incidents, outages or maintenance.
May 22, 2017
No incidents, outages or maintenance.
May 23, 2017
No incidents, outages or maintenance.
May 24, 2017
No incidents, outages or maintenance.
May 25, 2017
No incidents, outages or maintenance.
May 26, 2017
No incidents, outages or maintenance.
May 27, 2017
No incidents, outages or maintenance.
