Hi Anand,
I tried to enter the payment method also in the line items. But still it is not grouping the invoices together while making payments. I have also checked the setting in FBZP i.e. separately pay for marked items and this was not checked. Also I selected the "separate payment for each ref" in FBZP. But still it is not working. Could you see any other reasons for not grouping by payment reference.
Thanks and Regards
Koteswararao Padarti