How to use one invoice to match PO from different OU

Our current organization in Oracle is:

One legal entity for our plant, there are two OU, one OU for sales department, another OU for operation (include departments except sales,like finance,HR,IT,Manufacturing...)

Our current issue is I got one invoice from telecom company, include the communication fee from sales and operations, our finance need me to create two POs in Oracle,one PO in sales OU,and another PO in operation OU,so both of them can follow our different approval hierarchy in Oracle to match the finance matrix.

but the problem is how to use one invoice to match two POs from different OU,I try it,but I found invoice from operation can not match the PO from sales OU,I'm not sure is it Oracle issue or Oracle system can not support it.