While the configuration for Slack Scope is successful, it produces an error when I try to retrieve messages using Get Messages activity. Please refer to the image:
The error is:
Activity ended with error:
Error Code:  *
Message: Missing scopes: Please select them in the scope activity. *
Please select the following scopes on the Scope Activity and on slack.com: channels:read.
Even though I have choosen all the scopes in the Slack Scope activity. Please refer image:
And also all the required scopes in the User token scope of channel. as mentioned in the error like channels:read. Refer image