You want to directly update translations in your own database

In this case, you have 2 options: 

1. If your field is a “text” field, you can click on the translation logo (“EN” in this example) and directly add the translations on the popup.

1. You can access the other fields via the “Fields Selection” menu.
   Activate the Debug mode => Technical menu => Fields Selection => look for the fields you want to translate. In this example: the Product Type selection field from the product form.

1. If you need to translate more specific content, for example the “Help tooltip” that appears when your mouse is on a field, you will have to go in the “Translations” menu. This model gathers all your database translations.
   Activate the Debug mode => Translations menu => Translated terms => Search for your term via the search bar 

You want to update translations for all Odoo standard

If you want to help us improve Odoo standard translations, you will have to add them on Transifex. To do so, you can: 

1. Go into the Transifex website (you can directly search “odoo transifex” in Google)

2. Log In

3. Look for the Odoo module and the language you want to update 

1. Add your translations

Your translations will not be directly updated in the standard databases. 

1. The translated items are synchronized from Transifex to our Github every Sunday

2. The translated items are deployed from Github to the client’s Server every Monday IF they are on SaaS.
   If they are not on SaaS, they will have to manually do the update. You can check this documentation to know how to do it: https://www.odoo.com/documentation/15.0/administration/install/install.html

3. To have the translations updated on their DB, they have to “Generate the missing terms” with the debug mode: