How to create invoice for 2Way PO which is configured for ERS

Created a PO with 2 lines :-

Line 1 :- 2-Way, Receipt Tolerance - 100%, Match Option: PO, Unchecked at Accrue at Receipt

Line 2:- 3-Way, Receipt Tolerance - Null, Match Option: Receipt , Checked at Accrue at Receipt.

Supplier site is configured for ERS.

After receiving the 3 Way line.. system will create AP invoice automatically

Now the issue is with the 2-Way line..

ERS will not pick up this line for invoicing and we are even unable to do the invoicing for this line from isupplier portal also..

So what option do we have to create invoice for this line..???