hello, for a multilingual site (2 language) I need to create K2 extrafields that use a CONSTANT name to translate with the language OVERRIDE system.

1-I create the extrafield
2-as the name I use CUSTOM_FIELDNAME_1
3-I create override translation for each languages (I verified that the code was written in the override.ini file of each language)
4-I open the backend and go to the k2 item where to enter the values in the extrafields and ... the name of the extrafield has not been translated! I see CUSTOM_FIELDNAME_1 instead of the translation.

Where am I doing wrong?

PS: other constants in the site (already present in the components) are translated normally

Hello Max,

Which language file did you edit?

in frontend both. Overwrite the constant with the translation depending on the selected language.
in the backend the Italian language

hello, excuse the slowness in replying, I add the translations through the Joomla OVERRIDE system

Hello,

Can you send me an example of your code?