Why are there records in progress in an item batch?

Hi,

i'm creating item with item batch and some record goes in "in progress" tab.

I do not understand why and what it means. Maybe the new item match a lot of information, including description, but i'm not sure that is the cause.

In general, someone can explain me what means and why some records are "in progress" and what i had to do to confirm the import.

I I have consulted the official documentation, but perhaps something is escaping me.

Best Regards