Once a file has been uploaded, and completed (with or without errors), you can view the actions performed on the tags in the file. Click on the “View upload details” menu option for the upload.

This will take you to the “Upload details” page which shows which tags have been created, edited or have no changes.

Clicking on the “View tag upload details” menu option for a tag will open a sheet which gives more details on the tag upload actions. 

You can see any tag changes, errors created, and errors cleared for the tag in the different tabs.