2 way match PO - without GR

Hi,

We are using 2 way match POs for Import scenarios, where Condition types/Material LIV is done first and later Goods receipt is carried out. GR/IR clearing a/c has been used to post offsetting entries.

Now, my client's requirement is to use a 2 way match PO without GR. That is, during LIV - system has to post - debit expense and credit vendor and there wont be a GR done for the same

I am not sure what kind of changes need to be done to achieve the same.

Kindly suggest

Regards,

Gangadhar