I deleted my reminders successfully in the /remind list. The issue is that the message generated is still showing in the channel. How can I delete the message ?
You can only delete the generated reminder messages if your reminder was set up for yourself in a direct message with slackbot -- e.g. /remind me about stuff at 2:30PM.
You can't delete messages generated from reminders if you set your reminder up for a private or public channel -- e.g. /remind #channel about stuff at 2:30PM.