[ADD] Sales: new page on eWallets and gift cards programs

Adding a new page on eWallets and gift cards programs for the Sales app
documentation.

closes odoo/documentation#3241

Taskid: 3086636
Signed-off-by: Aarab Tom (toaa) <toaa@odoo.com>

content/applications/sales/sales/products_prices.rst

@@ -10,4 +10,5 @@ Products & Prices
    products_prices/products
    products_prices/taxes
    products_prices/prices
-   products_prices/returns.rst
+   products_prices/returns
+   products_prices/ewallets_giftcards

content/applications/sales/sales/products_prices/ewallets_giftcards.rst

@@ -0,0 +1,143 @@
+===========================
+Use eWallets and gift cards
+===========================
+
+With Odoo, customers can use **eWallets** and **gift cards** for online and in-store shopping.
+
+To enable eWallets and gift cards for eCommerce and Point of Sale (PoS), first enable
+:guilabel:`Discounts, Loyalty & Gift Card` under :menuselection:`Sales app --> Configuration -->
+Settings --> Pricing section`. Once enabled, go to :menuselection:`Sales app --> Products --> Gift
+cards & eWallet` and :guilabel:`Create` a new eWallet or gift card program.
+
+eWallets
+========
+
+eWallets allow customers to save credits on their online account and use these credits as a payment
+method when buying items in an online store or a brick-and-mortar store. eWallets can also be used
+to centralize multiple :ref:`gift cards <ewallet_gift/gift-cards>`.
+
+Before creating an eWallet program, it is necessary to create an eWallet **top-up** product. Top-ups
+are pre-defined digital credit values added to an eWallet in exchange for its equivalent in real
+currency. These credits can then be used as a payment method in the eCommerce shop or :abbr:`PoS
+(Point of Sale)`. Top-up values can be of different amounts.
+
+.. example::
+   A $50 top-up can be bought for $50, and adds that same amount of credits to the eWallet.
+
+To create a top-up product, go to :menuselection:`Sales app --> Products --> Products` and
+:guilabel:`Create` a new product. On the product template, configure the options as follows:
+
+- :guilabel:`Product Name`: enter a name for the top-up product (for example, `$50 Top-Up`)
+- :guilabel:`Can be Sold`: enabled
+- :guilabel:`Product Type`: select :guilabel:`Service`
+- :guilabel:`Invoicing Policy`: select :guilabel:`Prepaid/Fixed Price`
+- :guilabel:`Create on Order`: select :guilabel:`Nothing`
+- :guilabel:`Sales Price`: enter the amount of the top-up
+
+.. note::
+   In order to have eWallet top-ups of different amounts, create multiple top-up products and
+   modify the :guilabel:`Sales Price` accordingly.
+
+Once the top-up is created, go to :menuselection:`Sales app --> Products --> Gift cards & eWallet`
+to :guilabel:`Create` an eWallet program. The following configuration options are available:
+
+- :guilabel:`Program Name`: enter a name for the eWallet program
+- :guilabel:`Program Type`: select :guilabel:`eWallet`
+- :guilabel:`eWallet Products`: select the eWallet top-up created earlier. Repeat the process if
+  you created top-ups of different amounts.
+- :guilabel:`Email template`: select the email template used for the email sent to the customer. To
+  create a new template, click on the field, select :guilabel:`Search More`, and then click
+  :guilabel:`Create`.
+- :guilabel:`Currency`: select the currency to use for the eWallet program
+- :guilabel:`Company`: select the company for which the program is valid and available
+- :guilabel:`Available On`: select the applications on which the program is valid and available
+- :guilabel:`Website`: select the website on which the program is valid and available. Leave this
+  field empty to include all websites.
+- :guilabel:`Point of Sale`: select the :abbr:`PoS (Point of Sale)` in which the program is valid
+  and available. Leave this field empty to include all :abbr:`PoS (Point of Sale)`.
+
+.. image:: ewallets_giftcards/ewallet-configuration.png
+   :align: center
+   :alt: eWallet program configuration page
+
+Once the program is configured, click the :guilabel:`Generate eWallet` button in the upper-left
+corner to generate eWallets. eWallets can be generated based on :guilabel:`Customers` and/or
+:guilabel:`Customer Tags`. The quantity is automatically adapted according to the
+:guilabel:`Customers` and :guilabel:`Customer Tags` selected. Then, set the :guilabel:`eWallet
+value`. Finally, set the :guilabel:`Valid Until` period if applicable.
+
+Generated eWallets can be accessed through the :guilabel:`eWallets` smart button in the upper-right
+corner. From there, :guilabel:`Send` or :guilabel:`Share` the eWallets via email or a URL link.
+
+.. image:: ewallets_giftcards/ewallet-share.png
+   :align: center
+   :alt: eWallets send and share buttons
+
+Click on an eWallet to change the :guilabel:`Expiration Date`, :guilabel:`Partner`, or
+:guilabel:`Balance`. The :guilabel:`Code` of an eWallet *cannot* be changed, deleted, or duplicated.
+
+.. _ewallet_gift/gift-cards:
+
+Gift cards
+==========
+
+Gift cards can be purchased by customers, and in turn used as a payment method upon checkout at an
+eCommerce shop or :abbr:`PoS (Point of Sale)`.
+
+Before creating a new gift card program, it is necessary to first create gift cards as products. To
+do so, go to :menuselection:`Sales app --> Products --> Products` and :guilabel:`Create` a product.
+On the product template, configure the options as follows:
+
+- :guilabel:`Product Name`: enter a name for the gift card product
+- :guilabel:`Can be Sold`: enabled
+- :guilabel:`Product Type`: select :guilabel:`Service`
+- :guilabel:`Invoicing Policy`: select :guilabel:`Prepaid/Fixed Price`
+- :guilabel:`Create on Order`: select :guilabel:`Nothing`
+- :guilabel:`Sales Price`: enter the amount of the gift card
+
+.. note::
+  In order to have gift cards of different amounts, create multiple gift card products and modify
+  the :guilabel:`Sales Price` accordingly.
+
+Once the gift card product is created, go to :menuselection:`Sales app --> Products --> Gift cards
+& eWallet` to :guilabel:`Create` a gift card program. The following configuration options are
+available:
+
+- :guilabel:`Program Name`: enter a name for the gift card program
+- :guilabel:`Program Type`: select :guilabel:`Gift Card`
+- :guilabel:`Gift Card Products`: select the gift card product created earlier. Repeat the process
+  if you created gift card products of different amounts.
+- :guilabel:`Email template`: select the default :guilabel:`Gift Card: Gift Card Information`
+  template, or create a new template by clicking on the field, selecting :guilabel:`Search More`,
+  and then clicking :guilabel:`Create`.
+- :guilabel:`Print Report`: select :guilabel:`Gift Card`
+- :guilabel:`Currency`: select the currency to use for the gift card program
+- :guilabel:`Company`: select the company for which the program is valid and available
+- :guilabel:`Available On`: select the applications on which the program is valid and available
+- :guilabel:`Website`: select the website on which the program is valid and available. Leave this
+  field empty to include all websites.
+- :guilabel:`Point of Sale`: select the :abbr:`PoS (Point of Sale)` in which the program is valid
+  and available. Leave this field empty to include all :abbr:`PoS (Point of Sale)`.
+
+.. image:: ewallets_giftcards/giftcard-configuration.png
+   :align: center
+   :alt: Gift card program configuration page
+
+Once the program is configured, click the :guilabel:`Generate Gift Cards` button in the upper-left
+corner to generate gift cards. Gift cards can be generated either for :guilabel:`Anonymous
+Customers` or :guilabel:`Selected Customers`. Set the :guilabel:`Quantity to generate` for
+:guilabel:`Anonymous Customers`, or select the :guilabel:`Customers` and/or :guilabel:`Customer
+Tags` for :guilabel:`Selected Customers`. Then, set the :guilabel:`Gift Card value`. Finally, set
+the :guilabel:`Valid Until` period if applicable.
+
+Generated gift cards can be accessed through the :guilabel:`Gift Cards` smart button in the
+upper-right corner. From there, :guilabel:`Send` or :guilabel:`Share` the gift cards via email or a
+URL link.
+
+.. image:: ewallets_giftcards/giftcard-share.png
+   :align: center
+   :alt: Gift cards send and share buttons
+
+Click on a gift card to change the :guilabel:`Expiration Date`, :guilabel:`Partner`, or
+:guilabel:`Balance`. The :guilabel:`Code` of a gift card *cannot* be changed, deleted, or
+duplicated.