When it comes to adjusting the target ACOS in BBB, are there specific guidelines to follow? Is there a risk of negatively impacting performance by making frequent changes?

The frequency of adjusting the target ACOS in BBB is influenced by the Amazon algorithm's rules. Following any modification, the algorithm requires a "study period" of approximately one to two weeks to optimize efficiently. To maintain stability and allow for effective algorithm adaptation, it's advisable not to make adjustments more frequently than once every two weeks.