Add dynamic slack channel

Hello Team, We are trying to use Rasa Open source with Slack integration. In the yml file, we mention the slack_channel value along with other slack details like credentials, token etc. My question is can we avoid the slack_channel input in the config? The reason is we would like to create the slack channel dynamically then add the rasa-app to this new channel in the next step and then start the conversation flow. Please do confirm.