The Create Bill button on purchase orders lets you create a vendor bill for a particular purchase order. However, there may be cases where your vendor sends you a single invoice that combines line items from more than one purchase order. You can create a single vendor bill in such cases using the steps below:
Go to Invoicing -> Vendors -> Bills and click on the Create button.
Select the Vendor and enter the Bill Date and other optional details in the form.
Select a purchase order in the Auto-Complete field. You'll notice that the invoice lines are automatically filled with product lines from the selected purchase order. Note that only order lines/quantities that are not billed yet are fetched.
Select the next purchase order in the Auto-Complete field to include in the bill. Repeat this step for all purchase orders you'd like to include in the bill.
Click on Save and finally Confirm the bill to post it.
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