Customer Invoice

Here you can see outstanding credit payment of the customer, when you click on "Add" button so one payment wizard will be open.

Outstanding Payment Reconciliation Wizard

In standard odoo there is no way for partial reconciliation on invoice but this popup you can pay the invoice for partial amount.

Amount total field you can see the total invoice value is $5000 and in amount to pay you have to enter how much amount you want to pay for the invoice then once you enter that automatically remaining amount for your outstanding payment it will be show here remaining amount for payment and remaining amount for invoice.

Partially Paid Invoice

You can see the customer single invoice has been partially paid and also calculate remaining outstanding credit payment for customer.

Partial Payments Menu for Multiple Customer Invoice

Under Invoicing -> Customers -> Partial Payments menu for customer multiple invoice, When you click on partial payments one wizard will be open.

Partial Payments Wizard for Multiple Customer Invoice

In this wizard you can select partner so according to that partner residual amount will be calculated then select multiple invoices with entered amount to pay so remain amount is calculated. After click on "Register Payment" button.

Multiple Invoices Partially Paid Reconcile with the Outstanding Payment

You can see the customer multiple invoice has been partially paid and also calculate remaining outstanding credit payment for customer.

Vendor Bill

Here you can see outstanding debit payment of the vendor, when you click on "Add" button so one payment wizard will be open.

Outstanding Payment Reconciliation Wizard

In standard odoo there is no way for partial reconciliation on vendor bill but this popup you can pay the bill for partial amount.

Amount total field you can see the total bill value is $8000 and in amount to pay you have to enter how much amount you want to pay for the bill then once you enter that automatically remaining amount for your outstanding payment it will be show here remaining amount for payment and remaining amount for invoice.

Partially Paid Bill

You can see the vendor single bill has been partially paid and also calculate remaining outstanding debit payment for vendor.

Partial Payments Menu for Multiple Vendor Bill

Under Invoicing -> Vendors -> Partial Payments menu for vendor multiple bill, When you click on partial payments one wizard will be open.

Partial Payments Wizard for Multiple Vendor Bill

In this wizard you can select partner so according to that partner residual amount will be calculated then select multiple bills with entered amount to pay so remain amount is calculated. After click on "Register Payment" button.

Multiple Bills Partially Paid Reconcile with the Outstanding Payment

You can see the vendor multiple bill has been partially paid and also calculate remaining outstanding debit payment for vendor.

Warning/Validation Message

When customer/vendor entered amount is more than remaining amount that time warning message is generated.