Skip to main content
All CollectionsHow To Use Perpetua's FeaturesKeyword Boost - KWB
After Launching a Keyword Boost, Why Have My Bids Gone Down?
After Launching a Keyword Boost, Why Have My Bids Gone Down?

Understand what happens to your bids in Amazon after launching a Keyword Boost

Joe Rideout avatar
Written by Joe Rideout
Updated over a week ago

Our AI engine computes the exact bid it believes will yield the best performance. When running a keyword boost campaign with a Top-of-Search multiplier, bids will be scaled down to account for the placement multiplier.

This means that the higher you set your placement multiplier, the higher you should increase your ACOS target to account for this.

Illustrative Example:

  • Universal Goal - no keyword boost

Now we will move the keyword "apple" from the Universal goal into a keyword boost with a different Top-of-Search multiplier. As we are keeping the ACOS target the same, Perpetua's ad engine will decrease the Effective bid to keep the Top-of-Search Bid at $1.00

  • Keyword Boost - 50% Top of Search Multiplier

  • Keyword Boost - 100% Top of Search Multiplier

  • Keyword Boost - 200% Top of Search Multiplier

As shown in this example, increasing the Top of Search multiplier without increasing the ACOS target will direct traffic towards your Top-of-Search placement and away from other placements.

🚨Note: The above data is for illustrative purposes only. Bids will change slightly when you move a keyword into a keyword boost, regardless of keeping identical ACOS targets.🚨

Article last updated March 2024. If you find this information to be out of date, please contact

Did this answer your question?