Is there any other option than what you have suggested. as I don't want to bill any purchase orders until I receive.

Hello,

Is there anyway we can have advance payments against the Purchase Orders. 

The option to convert the Purchase Orders to Bills will not work if I have multiple Items in the PO and a certain percentage to be paid as Advance Payment. 

For example, Please look into below scenario I have.

We are having a Purchase Order - Which is inventory items and the agreed payment terms is 30% Advance & 70% upon delivery. 

If I'm to create a bill for 30% - How will I create a bill for 30% only. 

If I'm to create bill for 100% - How the system will consider this bill in terms accounting - IE - As this is a PO for Inventory Items. 
Will my Inventory Value will go up as I have created the bill based on the preference I have selected for "When a Purchase Order to be closed"

Thanks and looking forward to prompt response.