There was a success while bringing content from contenful into crowdin, but it seems during the back synch when i need to push translations to contenful nothing happens, like file is not recognized or so. Anyone faced that? How it can be solved?
85% sure it’s language codes. I bet you’re using some language added by default, right? With no manipulations at all?. If so, you need to change language code (map it) in project settings to anything that has locale patter. Contentful uses 4 letters code, for example French would be fr-FR, while in Crowdin it’s by default fr (and you need to set up a locale placeholder so it become fr-FR).
Adding mapping for let’s say French - locale - fr-FR should solve your problem.