How to Load a Translation in Odoo

So, let us start..

Step -1 
First, let us see how we can add a new language to the Odoo system.
Click on the ‘Settings’ App & Navigate to the ‘Translations’ > ‘Languages’ Menu.

Here, you can see the list of languages installed in the system. We can also see the languages which are currently active in the system. By default, the language selected at the time of the creation of a database is activated in the system.

Step -2
Now Navigate to ‘Languages’ > ‘Load A Translation’. Here you can load the desired language to the system. Select a language & click on ‘Load’.

This will load the selected language to the system or in simpler words, it’ll activate the selected language to the system.

Step -3
Now we can set the preferred language for the user in the preferences so that the system is translated to the language selected by the user.
Click on the user profile on the top-right for changing the language for the current user. Here, click on preferences.

This will open up a menu for the user where the user can set his/her language preference. In the language select a language from the available languages and click on Save. The page will refresh & change the system language for that user.

You can also set the user language in the ‘Settings’> ‘Users & Companies’ > ‘Users’.

Select the User, a preference tab will open up. Here you can set the preferred language.

Step -4
We can also set the direction for the fonts in the system. For example, in arabic language, the text is written from the right-to-left side. This preference can also be set in the language settings.

Step - 5
After loading the language, navigate to the ‘Languages’ menu & set the direction for the text. By default, it is right-to-left for Arabic language.
Navigate to the user & select the language.

As you can see the language & text direction are changed as specified.

Step -6 
Now we’ll see how we can add the translation for a Custom field in Odoo.
Activate the developer mode. After the developer mode is activated, you’ll see a new menu visible in the ‘Languages’ Menu.
‘Import/Export’ a translation. Click on ‘Export a Translation’, a wizard will popup.

Step -7
Select the language in which you want the translation file. For example, in this case, we are translating in ‘German’ language.
Next select the file format, which is ‘PO File’.
The Next step is to select the module for which we want to generate a translation file.
After selecting the module, click on Export.

Step -8
A new popup will open up with the exported translation file. Click on the translation file, the file will be downloaded in your system.
Open the file in your text editor, you’ll see two main keywords here:
First is the ‘msgid’, and the second is ‘msgstr’. ‘msgid’ shows the original term from the system and the ‘msgstr’ shows the translated term in that language.

You can change any translation if you want according to your preference.

Step -8
After that, navigate to your module and paste this file to the ‘i18n’ folder in the module. This folder is for the translation files of the module. Create a new folder named ‘i18n’ in the module if not already present.

After the file is transferred. Restart the server and upgrade the module.

You’ll see that the translation is updated in the system.

You can check the translated terms in the system by Navigating to ‘Languages’ > ‘Translated Terms’.

This will show all the translated records from the system.