Perchè ricevo un messaggio che mi chiede di confrontare o di mantenere i valori attuali mentre io cerco di modificare l'offerta nel livello di campagna?

When you try to change a bid on a particular campaign we check the bid values of the associated categories. If a category has a different bid value than its campaign we ask you to either “match campaign” or “keep current values”.

If you select “match campaign”, all category bids with values different from those of the campaign will match the new bid.

If you select “keep current values”, only category bids that match the bid value of the campaign will change. Categories with different bid values will not be impacted.