I am uable to view the history for the changes shown on the bid optimisation dashboard. How do I view them?

To access and review changes made inside the account for a specific keyword, follow these steps:

1. Navigate to the campaign associated with the keyword.
2. Within the campaign, locate the ad group related to the keyword you are interested in.
3. If there is only one ad group, as in the case of Sponsored Brands, proceed to enter that ad group.

In summary, to see the modifications made for a particular keyword, go to the respective campaign, find the relevant ad group (in the case of Sponsored Brands, there's typically only one ad group), and then access that ad group to examine the changes.