Reuse translations (recycling)
Dynamics 365 Translation Service supports translation reuse (recycling) from the linguistic assets of partners/ISV translations and Microsoft Dynamics 365. Therefore, strings that are translated one time can be consistently reused for future requests. You can recycle existing linguistic assets when translation memory is uploaded during a translation request.
The translation memory must be in XML Localization Interchange File Format (XLIFF) for UI requests and either XLIFF or Translation Memory Exchange Format (TMX) for documentation requests.