From what you said, it sounds like maybe it would be easier to just delete all posts before the import?
If that won’t work though: ll the normal WordPress actions are called. The ‘save_post’ action is triggered after each post is created.
There’s also MapPress action that is called during the import:
Hopefully those actions will be helpful. If you need to access the import, you can get a list of imports like this:
$imports = TI_Import::get_list();
Get one import where $id is the import ID you want to retrieve:
$import = TI_Import::get_list();
Get import lines for the import – this returns an array of class TI_Import_Line
$lines = $Import->get_imported_posts();
You can take a look at the TI_Import_Line definition to see the fields. For example: