From what I've seen, if you open an empty CatProduct and import both files at the same time, Catia will offer to rename the files in the assembly by incrementing a number at the end of the name.
if we open one and then the other, Catia won't want to because of the name conflict.
@vince.roullier, indeed CATIA only proposes to settle name conflicts when inserting into an assembly, not when opening individual files in the same session.
Thank you all for your answers, it makes things a little clearer.
Nevertheless, do you have any solution to overcome this problem? From my point of view, it would be to rename the shares in catia with a different name.
The risk of getting the file names wrong increases as a result.
So that you understand. I have two products for two different versions of the same system.
To avoid problems with the names of files, etc, I name them the same way. Only the name of the product differs.