Find the process with the most handoffs
Trace a new hire, pay change, leave request and performance issue from start to finish. Note every person, system, approval and deadline involved. The first failure is usually where responsibility changes hands without a clear status or exception process.
Repair one workflow before adding more tools
Assign an owner, source of truth, approval and escalation path. Measure missing records, late changes and repeated questions. HR outsourcing can provide capacity and expertise, but it should support a defined workflow rather than automate a process nobody understands.
For related guidance, read employee onboarding checklist and HR outsourcing during rapid growth.