If bids on keywords in a bid strategy are manually overwritten, how long will it take for the bid strategy to resume bidding on those keywords?
The correct answer is:
When you manually override the max CPC, the new max CPC will remain for 24 hours; the Search Ads 360 optimization system will not update the max CPC during this time. After 24 hours, Search Ads 360 will resume optimizing your bids to meet the goals of the bid strategy, starting at the manually set max CPC.
Read more here: https://support.google.com/searchads/answer/2382754