Hi, This docs will help you to understand how you translate shortcode ultimate language string by localise extension. We explain all step by step:
Here we installing German DE language.
Language install successfully
Extensions > Languages > Content Languages after install the language you must need to activate from
Download the localise extension from Joomla Extension Directory then install it.
Go to components > Localise > Translation
Filter and find the shortcode language file
Look the language file (de-DE) look this
Click on file name and start your translation:
Very simple
You don’t need to translate all string because there are many string which used in admin panel. you can translate only what you need to translate for example: Post Grid filter text, Contact Form input field text etc.