Your workspace is on a shared plan, so this module isn't switched on yet.
These modules run on a dedicated Workhub deployment — your own database, used by your company alone. That's what makes them safe to switch on: your finance records, engineering work, and internal mail never sit alongside another company's data. On the shared Starter and Business plans, every company runs on one deployment, so these modules stay off by design.
Because Enterprise runs on a deployment used by your company alone, we can shape it to fit — custom fields, workflows and approval rules on any module here, and a new module built from scratch if none of these cover what you need. Tell sales what you're after when you reach out.