FlexDeploy ships with an internal Issue Tracking System. This uses numeric work item numbers. Such Work Items can be created using + icon on top right corner or from Work Items page using Create button.
Issue Tracking Instance is already pre-configured for you, so no work is necessary on Integrations page.
Configure FlexDeploy ITS as Issue Tracking Instance on your project or parent folder. This will allow you to integrate FlexDeploy Work Items with your builds. Optionally configure for Comment and/or Status update after build or deploy execution.
Now you can associate Work Items to project builds. To associate with commit messages, use the format #id for example, #287. To associate Work Items manually to a build request, just use the id, for example, 287.
See Associate Work Items to a Build for more information about associating Work Items to builds.