This is the technical support forum for WPML - the multilingual WordPress plugin.
This thread is resolved. Here is a description of the problem and solution.
Problem: Is there a way to match existing taxonomies as a translation of each other?
Solution: You can edit the category and choose the category that you wanted to link in the This is a translation of Section.
Relevant Documentation: https://wpml.org/forums/topic/link-existing-categories-between-languages-manually/#post-4003793