How to see pending or rejected transaction

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HR transactions are submitted by HR (like Change Department on Assignment or Increase Salary) ,until the transaction is approved ,anyone would not able to see it in the corresponding screen. 

Our client is looking a way to see the Transactions that are placed with their approval or rejected status , I am sure if transaction is in Pending approval or rejected they will not be able to see in the front end, is there any Bi report available to fulfill these needs , I checked the Transactions Real time and Approvals real time subject areas and none of them are linked to Original HR transactions.