Slack fails to deliver message notifications to some users
A user reports that Slack does not send them notifications when someone sends a direct message, meaning they only discover new messages by manually checking the app.
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Similar Problems
surfaced semanticallySlack Notifications Fail to Deliver for Some Users
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Slack push notifications fail to surface despite full permissions enabled
Slack users with all notifications enabled still miss critical messages because alerts do not pop up. High individual impact from missed information, but this is a vendor reliability issue rather than a market gap.
Slack DM Notifications Silently Fail Despite Correct Settings
Slack fails to deliver DM notifications to some users even after exhausting all standard troubleshooting steps. The silence is invisible to senders, who assume messages are being received, causing missed deadlines and damaged professional relationships. The problem appears to affect a subset of users persistently with no reliable fix from Slack support.
Slack messages disappear or fail to deliver
Slack notifications appear then vanish, or messages are not delivered at all intermittently.
Problem descriptions, scores, analysis, and solution blueprints may be updated as new community data becomes available.