What it covers
Your record, where it needs to go next
Approved vouchers and payments into your ledger as journal entries, issued orders into the ERP, role changes into the HR system — through typed webhooks, a documented API and ready-to-import files rather than a monthly export somebody assembles by hand.
Sign-in that matches your policy
Single sign-on with your existing identity provider — required, if you choose — one sign-in per person across all your companies, enforced multi-factor policy, and access restricted to the networks you nominate.
Alerts people actually receive
Approvals waiting, requests returned, deadlines approaching — delivered where the person will see them, so the queue does not stall on somebody not knowing it is their turn.
What it adds
Each is bought and switched on separately. Everything above is true of all of them.