Translating ErrorMessages in Determination and Validation | Custom Business Object | S4 Public Cloud

Hi everyone,

So successful my institution we are developping immoderate Apps which usage Custom Business Objects (created with the corresponding cardinal idiosyncratic extensibility app) for storing Data.
Now for said Custom Business Objects we person immoderate Validation Logic. Which besides should output Error Messages. 
While this works fine, one americium wondering if determination is simply a mode of translating these texts.
My Colleagues cognize that this was imaginable successful the "old world" with the transaction se63, but we conflict to find a illustration wherever thing similar this is done successful a S4/HANA Public Cloud System.

I recovered immoderate info astir "Maintaining Customizing Translations" and Translation Tables, but theres not overmuch retired there.

Any feedback oregon suggestions would beryllium appreciated

https://help.sap.com/docs/SAP_S4HANA_CLOUD/0f69f8fb28ac4bf48d2b57b9637e81fa/d334f29b1cfc443b9f035e2f...