[IMP] accounting: updated multiple payments page

Previous page was based on V13. Forward up to 16.

closes odoo/documentation#2865

Taskid: 3045197
Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com>

content/applications/finance/accounting/payables/pay/multiple.rst

@@ -2,146 +2,50 @@
 Pay several bills at once
 =========================
 
-Odoo provides a simple and effective way to handle several bills at
-once, with various quick or complex options. With one single process,
-anyone is able to handle bills and payment in just a few clicks.
-
-Pay multiple bills with one payment
-===================================
-
-Record several payments
------------------------
-
-In the following example, we will generate some bills. You can control
-the whole process from your accounting dashboard (first screen you get
-when you open the accounting application).
-
-.. image:: multiple/multiple01.png
-  :align: center
-
-To create a bill, open the Dashboard menu and click on **Vendor Bills**.
-In the Vendor Bills window, click on **Create**.
-
-.. image:: multiple/multiple02.png
-  :align: center
-
-Choose the vendor from which you wish to purchase the product, and click
-on Add an item to add one (or more) product(s). Click on **Save** and then
-**Validate**.
-
-Pay supplier bills, one after the other
----------------------------------------
-
-.. image:: multiple/multiple03.png
-  :align: center
-
-We will now record a payment for one bill only. Open the bill, then
-click on **Register Payment**. Insert the Payment Method, Date and Amount,
-and click on **Validate**.
-
-.. image:: multiple/multiple04.png
-  :align: center
-
-Once you have validated the payment, the system will automatically
-reconcile the payment with the bill, and set the bill as **Paid**. The
-system will also generate a move from the payment account and reconcile
-it with the expense transaction.
-
-Pay several bills altogether
-----------------------------
-
-In order to illustrate the process thoroughly, create at least 2 more
-bills following the above standing guide. **Make sure all bills come
-from the same vendor.**
-
-.. image:: multiple/multiple05.png
-  :align: center
-
-In the Vendors Bills, select the new bills you have just created by
-checking the box next to each of them. In the Action menu located in the
-middle of the page, click on **Register Payment**.
-
-.. image:: multiple/multiple06.png
-  :align: center
-
-Insert the details of the payment. The system calculated the total
-amount for both bills, but you can modify it freely. Click on **Validate**.
-
-Record the payment, reconcile afterwards
-----------------------------------------
-
-You can also reconcile a payment with bills after the payment has been
-recorded.
-
-First, we need to create a payment
-
-This will handle from :menuselection:`Dashboard --> Bank journal -->
-More Option --> Send Money`
-
-.. image:: multiple/multiple07.png
-  :align: center
-
-Creating payment order with check payment method. Selecting related
-Vendor and amount which remain to pay. After filling all details, we
-will confirm the payment order which will generate payment transaction
-with the system.
-
-.. image:: multiple/multiple08.png
-  :align: center
-
-As you can see, bill payment status show what is posted and what is
-remaining to reconcile.
-
-After receiving bank statement from the bank with payment detail, you
-can reconcile the transaction from the Dashboard. It will automatically
-map the transaction amount.
+Odoo offers the possibility of grouping multiple bills' payments into one, facilitating the
+reconciliation process.
 
 .. seealso::
+   - :doc:`../supplier_bills/manage`
    - :doc:`../../bank/reconciliation/use_cases`
 
-Partial payments of several supplier bills
-==========================================
+Group payments
+==============
 
-How to pay several supplier bills having cash discounts at once?
-----------------------------------------------------------------
+To register the payment of multiple bills at once, go to :menuselection:`Accounting app -->
+Vendors --> Bills`. Then, select the bills you wish to register a payment for by **ticking** the
+boxes next to the bills. When done, either click :guilabel:`Register Payment` or
+:menuselection:`Action --> Register Payment`.
 
-You already learned how to pay bills in various way but what about
-partial payment? We are taking another example where we will do partial
-payment for various bills.
+.. image:: multiple/register-payment-button.png
+   :align: center
+   :alt: Register payment button.
 
-We are creating multiple bills and partially pay them through bank
-statements.
+.. note::
+   Payments can only be registered for :guilabel:`posted` bills.
 
-We are adding payment terms which allow some cash discount where vendor
-offer us early payment discount.
+When registering the payments, a **pop-up window** appears. From here, you can either create
+**separate payments** for each bill all at once by clicking :guilabel:`Create Payment`, *or* create
+one payment by combining **all** bills' payments. To **combine** all payments, tick the
+:guilabel:`Group Payments` box.
 
-.. image:: multiple/multiple09.png
-  :align: center
+.. note::
+   The :guilabel:`Group Payments` option only appears when selecting two or more bills.
 
-We are creating the following bills with the assignment of the above
-payment term.
+.. image:: multiple/multiple-group-payments.png
+   :align: center
+   :alt: Group payments options when registering a payment.
 
-.. image:: multiple/multiple10.png
-  :align: center
+When selecting :guilabel:`Group Payments`, the :guilabel:`amount, currency, date and memo` are all
+set automatically, but you can modify them according to your needs.
 
-We have created the following bills:
+Partial group payments with cash discounts
+------------------------------------------
 
-.. image:: multiple/multiple11.png
-  :align: center
-
-We will pay the invoices by creating bank statement where we will adjust
-the cash discount our vendor provided under payment terms.
-
-.. image:: multiple/multiple12.png
-  :align: center
-
-Before reconciling this bank statement, we need to create one statement
-model for cash discount.
-
-.. image:: multiple/multiple13.png
-  :align: center
-
-Now we are going back to bank statement and opening reconcile view.
+In case of **partial group payments with cash discounts**, you can follow the steps found on the
+:doc:`cash discount documentation page <../../receivables/customer_invoices/cash_discounts>`. Make
+sure to apply the :doc:`payment terms <../../receivables/customer_invoices/payment_terms>` to the
+**bills** *instead* of the invoices.
 
 .. seealso::
-   - :doc:`../../bank/reconciliation/reconciliation_models`
+   :doc:`../../receivables/customer_invoices/payment_terms`