WIP Twilio Documentation

Instead of talking about the disallowed amount (non-deductible),
we now talk about its reverse (deductibility).

Enterprise PR: https://github.com/odoo/enterprise/pull/76066

task-id 4421297

content/applications/finance/fiscal_localizations/belgium.rst

@@ -140,12 +140,9 @@ Let's take an example reflecting **restaurant** and **car expenses**.
 Restaurant expenses
 ~~~~~~~~~~~~~~~~~~~
 
-In Belgium, 31% of **restaurant** expenses are non-deductible. Create a new **disallowed expenses
+In Belgium, 69% of **restaurant** expenses are deductible. Create a new **disallowed expenses
 category** and set both :guilabel:`Related Account(s)` and :guilabel:`Current Rate`.
 
-.. image:: belgium/restaurant-expenses.png
-   :alt: Disallowed expenses categories
-
 .. _belgium/vehicle-split:
 
 Car expenses: vehicle split
@@ -153,7 +150,7 @@ Car expenses: vehicle split
 
 In Belgium, the deductible percentage varies from car to car and, therefore, should be indicated for
 each vehicle. To do so, open :menuselection:`Fleet` and select a vehicle. In the :guilabel:`Tax
-info` tab, go to the :guilabel:`Disallowed Expenses Rate` section and click on :guilabel:`Add a
+info` tab, go to the :guilabel:`Deductibility Rates` section and click on :guilabel:`Add a
 line`. Add a :guilabel:`Start Date` and a :guilabel:`%`. The amounts go in the same account for all
 car expenses.
 

content/applications/marketing/sms_marketing.rst

@@ -45,6 +45,12 @@ rate)` outcomes.
       Find out more about Odoo's SMS pricing, and check out some of the most frequently asked
       questions.
 
+   .. card:: Twilio
+      :target: sms_marketing/twilio
+
+      In some countries with stricter regulations, the out-of-the-box solution proposed by Odoo
+      may not work. In this case, you can use our Twilio integration to send SMS worldwide.
+
 SMS marketing dashboard
 =======================
 
@@ -81,3 +87,4 @@ detailed analysis.
    sms_marketing/marketing_campaigns
    sms_marketing/mailing_lists_blacklists
    sms_marketing/pricing_and_faq
+   sms_marketing/twilio

content/applications/marketing/sms_marketing/twilio.rst

@@ -0,0 +1,40 @@
+==============
+SMS via Twilio
+==============
+
+What is Twilio
+==============
+
+Twilio is a third-party provider that enables you to send SMS messages to your clients.
+Odoo provides an easy way to use this service within your Odoo apps.
+
+Why would I need it?
+--------------------
+Altough Odoo already comes with an out-of-the-box (IAP) solution for SMS messages, it might
+now work in some countries with stricter legal requirements. Currently, Odoo registers
+itself when possible to avoid extra setup for its customers, however in some countries
+that is not enough and the client itself must do it. This can be done through Twilio.
+
+Setup your Twilio account
+=========================
+
+By creating a Twilio account, you will be able to create a virtual phone number from
+which you will be able to send SMS messages. These cost credits that are to be bought
+on Twilio, not Odoo.
+
+#. Go to https://www.twilio.com
+#. Sign up and create an account
+#. Complete your information
+
+#. In your Dashboard, go to :menuselection:`Phone Numbers --> Manage --> Buy a number`
+#. Buy a number (or use a trial one)
+#.
+
+
+
+Setup Odoo to use Twilio
+========================
+
+
+Common errors
+=============