Ok. So you believe in micro services and shadow IT. You add a task management tool, e-payslips, HR app, case management and more. They all make sense since they address a specific need. And then at some point you feel a need to link them first via a single sign on (with a service like Okta) and later as a coordinated work flow. Don’t do this since you will be adding complexity and removing optionality to use the best service for the job since you will be embedding the tools that you selected because they are easily replaceable.