In Odoo 18 Enterprise, if a payment for a vendor bill does not generate a separate journal entry, it is commonly due to the payment journal not being configured with an appropriate outstanding or interim account. Without this configuration, the payment is recorded internally but does not create formal accounting entries, preventing reconciliation and leaving the bill open. This behavior aims to streamline entries but can cause confusion in testing or real accounting workflows where clear payment records are required.

To fix this, you need to configure the bank or cash payment journal by setting the appropriate outstanding accounts under the journal settings in the Accounting.

Hi,

If you create the payment against the bill, you can view it through the smart button.

You can view the payment by navigating to Accounting → Vendors → Payments.

Hope it helps.

Please review the documentation at https://www.odoo.com/documentation/19.0/applications/finance/accounting/payments.html#registering-payment-from-an-invoice-or-bill