Albeit, the issues are rather scarce, users will run into a few of them from time to time. One distinct error we run into is the Slack couldn’t send this message error. Obviously, it appears when a user tries to send a message and are met with a halt. We provided you with 5 possible solutions below. Consider trying them out and give us a shout in the comments if they helped you.

How to fix Slack messaging issues

Solution 1 – Check whether servers are up

Even though our first focus is usually on the individual cases, a service like Slack occasionally has general issues, plaguing a multitude of users. To check whether this is the case and identify possible server issue, we need you to navigate to the Slack Status website. There, you can find whether the problem is on your side or something which bothers others, as well. Navigate to Slack Status, here, to find out which is the case. The Messaging section should give you enough insight concerning the “Slack couldn’t send this message” error you’re getting.

Solution 2 – Check the internet connection

Making sure that you’re using a stable connection is another thing you’ll need to worry about. This, of course, is simple to determine and rather simple to troubleshoot in general. Moreover, the best way to start when it comes to Slack troubleshooting the official web-based connection-testing tool. This tool checks your connection to Slack and provides you with valuable insight. Just sign in and run the test. After you’ve got some grip on possible issues, you can try these steps to troubleshoot the connection:

Clear browser’s cache (for a web-based client). Restart your router. Try with the wired connection. Disable VPN or Proxy temporarily.

— RELATED: How to edit, delete or archive a Slack channel – Slack Guides SPONSORED

Solution 3 – Clear application cache and restart

If we go beyond the usual connection issues, the next stop is the app itself. The pilled up cache might be the reason for all kinds of errors. Now, we can’t say with certainty whether that’s the case with the “Slack couldn’t send this message” error, but it won’t cost you a thing to clear the cache from Slack. Based on what app you’re using (standard or UWP version), you can reset cache by following these steps: Slack UWP from Microsoft Store

Solution 4 – Allow Slack in Windows Firewall

In order for any and all connection-dependent apps to work successfully, you’ll need to allow them through the Windows Firewall. Slack is not an exception. This is usually done automatically, as long as you install the client or the Microsoft Store app. However, it might change and we’ll need you to confirm Slack is able to communicate through Public and Private networks. With that said, here’s how to check it and make necessary changes: In addition, if you run third-party antimalware software with a built-in firewall, we suggest whitelisting Slack, as well.

Solution 5 – Reinstall the app

Finally, if the “Slack couldn’t send this message” error persists, you can try reinstalling the app. In addition, consider using alternatives for the time being, whether that’s a web-based app, UWP, or a standard desktop app. With that said, we can conclude this article. Don’t forget to tell us in the comments section below about alternative solutions you’re aware of or post questions. We look forward to hearing from you.

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