PO Approval issue - Approve and forward

Hi,

We have a business scenario as explained here:

Company OU1 - Purchase Officer (A) --> Purchase Manager (B) --> Finance Manger (C) --> General Manager (D)

Company OU2 - Purchase Officer (E) --> Purchase Manager (B) --> Finance Manger (F) --> General Manager (G)

The Purchase manager is common to both companies (as per his job description). But he is a employee of company OU2, and on the payroll of OU2. His primary assignment is in OU2.

OU1 is an additional responsibility and he must approve all PO's for OU1 before it goes to the next approver in OU (i.e. Finance Manger (C)).