Create items and item structures from external source

Hi,

I want to create new items and their structures in PIM using information from external source (SFDC).

The import process does not have to be automated using APIs. Manual imports using FBDIs or import functions of PIM are just fine.

However, the thing is sometimes component item names are different between the external source and PIM.

Is there any way to import item structures using names in external source system name and PIM automatically transform the items to the compatible items?

My guess is that we can achieve this using item relationships but don't know exactly how to do it.