If your tCPA or tROAS campaign misses its conversion target, Google can lower the costs it charged you after the fact. The window to do that just got a lot longer.
The adjustment switches on automatically within five days of launch. It's a beta, and not every campaign qualifies. Account history and bidding practices play a role.
Watch out: adjustments can take up to five days to show in reporting, and there's no separate line item that marks when one happened.
Via PPC News Feed (Hana Kobzová), shared by Anu Adegbola, mMBA.
