[IMP] update content of "Terms & conditions" (Sales - V13) (#556)

Co-authored-by: Julien B <37931357+jubodoo@users.noreply.github.com>

sales/send_quotations/terms_and_conditions.rst

@@ -1,44 +1,117 @@
-================================
-Add terms & conditions on orders
-================================
+======================
+Add terms & conditions
+======================
 
-Specifying Terms and Conditions is essential to ensure a good
-relationship between customers and sellers. Every seller has to declare
-all the formal information which include products and company policy;
-allowing the customer to read all those terms everything before
-committing to anything.
+Specifying terms and conditions is essential to set out important contractual points such as payment
+terms, limitation of liability and delivery terms between customers and sellers. Every seller must
+declare all formal information concerning products and company policy. On the other hand, each
+customer must take note of all these conditions before committing to anything. With Odoo Sales, it
+is very easy to include your default terms and conditions on every quotation, sales order, and
+invoice that you manage.
 
-Odoo lets you easily include your default terms and conditions on every
-quotation, sales order and invoice.
+Default Terms & Conditions
+==========================
 
-Set up your default terms and conditions
-========================================
+Configuration
+-------------
 
 Go to :menuselection:`Accounting --> Configuration --> Settings` and activate
 *Default Terms & Conditions*.
 
-.. image:: media/terms_and_conditions01.png 
-      :align: center 
+.. image:: media/terms_conditions_1.png
+   :align: center
+   :class: img-thumbnail
+   :alt: How to enable Default Terms & Conditions on Odoo Sales?
  
-In that box you can add your default terms & conditions. They will then
-appear on every quotation, SO and invoice.
+.. note::
+   Please note that this feature is activated via the settings of the **Invoicing App** and **not**
+   via the settings of the **Sales App**. Moreover, you don't need to install the invoicing
+   application since it is done automatically with the installation of the sales application.
 
-.. image:: media/terms_and_conditions02.png 
-  :align: center 
+DT&C on your quotations, sales orders, and invoices
+---------------------------------------------------
 
-.. image:: media/terms_and_conditions03.png
-  :align: center
+In the settings of the **Invoicing App**, you have the possibility to insert your default terms
+and conditions.
+
+.. image:: media/terms_conditions_2.png
+   :align: center
+   :class: img-thumbnail
+   :alt: Default Terms & Conditions on quotation on Odoo Sales
+
+They appear subsequently on every quotation, sales order, and invoice.
+
+DT&C on your quotation templates
+--------------------------------
+
+According to your business needs, you can specify your terms and conditions on your quotation
+templates. This is interesting if you have different terms and conditions within your company.
+
+.. image:: media/terms_conditions_3.png
+   :align: center
+   :class: img-thumbnail
+   :alt: Add Default Terms & Conditions to your quotation templates on Odoo Sales
+
+.. important::
+   Be sure to check out our documentation about quotation templates: :doc:`quote_template`,
+   to master each step of this amazing feature.
   
-Set up more detailed terms & conditions
-=======================================
+General Terms & Conditions
+==========================
 
-A good idea is to share more detailed or structured conditions is to
-publish on the web and to refer to that link in the terms & conditions
-of Odoo.
+GT&C on your website
+--------------------
 
-You can also attach an external document with more detailed and
-structured conditions to the email you send to the customer. You can
-even set a default attachment for all quotation emails sent.
+Use the **Website App** and create your own general terms and conditions page. For example, here is
+the Odoo terms and conditions page:
 
-.. image:: media/terms_and_conditions04.png
-  :align: center
+.. image:: media/terms_conditions_4.png
+   :align: center
+   :class: img-thumbnail
+   :alt: General Terms & Conditions on your website
+
+You can refer to this page in the footer of all your documents. The layout is available in the
+**General Settings** under the **Business Documents** category. For example, this footer appears
+in every document from Odoo.
+
+.. image:: media/terms_conditions_7.png
+   :align: center
+   :class: img-thumbnail
+   :alt: General Terms & Conditions in your business documents
+
+GT&C as attachment in your emails
+---------------------------------
+
+Attach an external document with your general terms and conditions when you are about to send your
+quotation by email to your customers.
+
+.. image:: media/terms_conditions_5.png
+   :align: center
+   :class: img-thumbnail
+   :alt: General Terms & conditions as attachment in your email
+
+GT&C as attachment in your quotation templates
+----------------------------------------------
+
+Create and edit email templates to set a default attachment for all quotation emails that you
+will send in the future. To do so, you have to go to :menuselection:`Sales --> Configuration
+--> Quotation templates` and create a new quotation template or modify an existing one. Under
+the confirmation tab, you are now able to activate online signatures, online payments and to set
+a confirmation mail in which you have the possibility to configure the default attachment.
+There, you can put your general terms & conditions.
+
+.. image:: media/terms_conditions_6.png
+   :align: center
+   :class: img-thumbnail
+   :alt: General Terms & conditions as attachment in your quotation templates
+
+.. tip::
+   To customize your email templates, activate the **developer mode** and
+   go to :menuselection:`Settings --> Technical --> Email --> Templates`.
+
+With Odoo Sales it is now very simple to deal with terms & conditions.
+
+.. seealso::
+   - :doc:`quote_template`
+   - :doc:`get_signature_to_validate`
+   - :doc:`get_paid_to_validate`