Match based on ID or on title?

Hi,

I tried your plugin and it’s one of the better ones out there for this. But it works better on a empty target site, than on a target website that already has posts on it.
But when I import posts, and later featured images with your plugin, on a website with existing posts. Only a small percentage of featured images get matched with the (right) post.

So is the import matching the f.i. and the posts based on id? Or based on for example title?

Because when you import on a site where there are existing posts, you will get new id’s for certain imported posts (because the id in the import file is already existing on the target website). Which will cause that a lot of f.i. can’t be matched with the right posts anymore.

Could this be true, or could it be something else?

Thanks very much in advance.

https://www.ads-software.com/plugins/export-featured-images/