A WordPress installation.
- WPML plugin installed (4.5 or later).
- WPML String Translation (minimum additional WPML plugin).
From your WordPress admin panel go to : WPML / Theme and plugins localization
Scroll down to : “Strings in the plugins », find “Sagenda Calendar” in the table, check it and click the button “Scan selected plugins for strings »
Wait the results.
Then you will get your PO files to translate, continue like with any .PO files translations.
For more info :
https://wpml.org/faq/how-to-generate-a-po-file-for-a-plugin-or-a-theme/