You can change the strings provided by WCFM easily and ensure that your marketplace’s frontend is in your local language. Localizing WCFM is very straightforward, all that is needed is a translation file for your language. You can create translations as has been outlined in the WordPress Codex, but the easiest possible way for doing this is by using Loco Translate plugin.
So, here we will discuss how you can translate your marketplace in your local language using Loco-translate plugin.