How to automate the three way match for receiving a Purchase Order

I need help automating our Purchase Order (TP _travel) receives and three way match.

This is our current process:

1 A requisition is open.

2 The Purchase Order is Created.

3 The Purchase Order is received using G43B11 option 10 (Receive by PO).

4 Using the G43B11 option 11, the accountant matches the PO with the Voucher.

What we want to do is automate options 10 and 11 from the G43B11.

We have an application that will be creating the PO receives in the F0411Z1 and F0911Z1 with the PO;

At this point, I am not sure how to interface or create the automation.