Successfactors EC Data changes Audit log

Hi All,

I am new to SuccessFactors EC and one  of our customer wants to report on data changes made in SuccessFactors EC by employees/HR Admins for some crucial data like Salary changes etc. Can you please let know how this Audit log functionality can be achieved.

Also can we trigger a workflow on these kind of data changes which does not needs an Approval as such but is for information of relevant payroll administrators (Not just a cc role of receiving notifications only).

I was thinking of creating and triggering a workflow via a rule having Workflow contributor as the only role involved in the process.

My query here is will this workflow will be in status completed once viewed by relevant Administrators group ?

Regards

Param