Hi,

In Odoo 18, there is a feature to merge Requests for Quotation (RFQs), but not vendor bills.

Please refer to the following links:

1. https://apps.odoo.com/apps/modules/17.0/invoice_merging

2. https://odoo-community.org/shop/account-invoice-merge-282#attr=4363

Hope it helps.

Hello there,

Select the PO→ then click Create Bills

This will create a  draft bill for both billable product line.

This reference is from Odoo 18

Hope this will help you.

Consolidating vendor bills isn't natively supported in the same way customer invoices are, but using a third-party module or a custom solution might help. Worth checking if the Accounting settings allow any grouping behavior during bill creation.