Ad Optimizer now allows to archive all manual keyword, product, and brand targets of a campaign with bulk import files. Until now, one last target needed to be kept in order to archive all the other targets. This is no longer needed. When you now remove all targets of a campaign from the import file, they will be archived after the import to Ad Optimizer.

Important note: 
If no changes are to be made to the targets during a campaign update, it is now required to enter "[skip]" in the fields related to the targets on the corresponding sheet.