If the HR Manager has updated the record in Company 2 then to reverse an Intercompany Transfer the steps to be followed are -
1. HR Manager in Company 2 should update the employee as "Did Not Join" in the
new company
2. When Approver withdraws the Intercompany transfer then alerts will go to the
various stakeholders and the Full and Final also would be automatically reversed
(if payroll is integrated)
3. If Full and Final is in process than we cannot withdraw Intercompany transfer.
Full and Final will have to be cancelled and only then approver can withdraw
the request