In order to use our /officely command Officely needs to be added to your Slack channels. Luckily Officely will automatically be added to all public channels, however you'll need to invite Officely to your private channels before the command will work. Here's how to do that:
Click on the private channel
Go to the text box at the bottom and click on the shortcuts button at the bottom left (looks like a lightening bolt).
Click 'Add apps to this channel'
You're all done!
Here's a step by step video: