Hi when i try to test a slack notifications the next following is the error
slack message for report - test scheduled on 29-08-2018_15-25-00 was not sent due to Invalid authentication - Check whether the credentials are configured correctly in scheduled report page - 08/29/18 3:29PM
Thanks for contacting Skedler.
Can you please verify whether the Token configured to the Slack Notification list in the Skedler Configuration page is correct?
To verify you can send a test slack to the user with the saved slack configuration details using the Test Slack field and click send button.
If you see a green banner on the verification kindly let us the Skedler log files skedler.log from skedler_home/log
Hope this helps.