Hello you two. Thank you for the reply.

Yes, I used the wizzard. For German it works perfect, but for Spanish (same method) it does not work. Is there any kind of priority you need to set?

Oliver

Hi,

If you are trying to set the  translation for your custom module, you can set it from

Enable debug mode -> settings -> Translation -> export translation 

Then you can choose the language from it, and select your module to add translation

Replace the language with the language in which you need to translate and export the file.

Afte exporting a PO file will be generated, Inside that file you can make changes for the fonts that you need to add translation, after add translation you can import the saved files from settings -> translations-> import translation Or you can add the file in your custom module /custom-module/i18n/.po

Hope it helps

Did you import the .po file using the "Import Translation" wizard? (see screenshot)

If so, did you set the "Code" in this wizard to "es_ES" as well?
Also, are you using the "Spanish" (es_ES) language in your database, or any of the Latin American Spanish languages?