Background of the issue:
I have a webshop with 400 products in EN, DE, IT, ES, FR languages. I want to export EN products, edit and translate content, and then import these products in other languages (DE, ES, IT, FR). I have installed WPML Export & Import. When visiting Products --> English --> Export selected products, it gives me a working CSV file I can work on locally. After editing, I generate a new CSV file. Then I visit Products --> German --> Import, but it creates new products instead of translating existing ones. I tried adding Meta: _wpml_import_language_code --> "de" and Meta: _wpml_import_source_language_code --> "en".
Symptoms:
It creates new products instead of translating existing ones, resulting in duplicated products in two different languages.
Questions:
Is there any step I miss?
Is there any documentation that you are following?