Slack, a work-focused messaging application, has been unstable since Monday morning (4).
According to the DownDetector website, the complaints started around 11:30 am and peaked at 1:30 pm. In a statement on social media, Slack said the team is investigating what happened.
Users report that they cannot connect and can use the application on both mobile and browser.
Falls have been recorded in the UK, Canada, Australia and several European countries. In Brazil, São Paulo, Recife and Rio de Janeiro are hardest hit.