How to upgrade to a Slack Pro Plan from a free trial?
The Centro functionality requires a Slack workspace on a Pro Plan to gain access to Slack App Marketplace and the Workflow Builder toolset. If running on a free Slack trial, complete the steps to upgrade to the Pro Plan.
1. Navigate to the Browse Slack Menu Item and select the Slack Connect option.
2. After navigating the Slack guides, you can Create a Channel with Slack Connect (annotated with PRO). Select the Create a Channel PRO option.
3. Finally, select the Start Free Trial option. This will provide workspace access to the Slack Pro Plan features and allow you to configure Centro Functionality.