To view Amazon advertising bid adjustment records, you can follow the steps below:

1. Log in to Amazon Seller Central: Go to the Amazon Seller Central website (https://sellercentral.amazon.com/) and log in with your seller account.

2. Enter the advertising management page: On the homepage of the seller center, find the "Advertising" menu and click the "Advertising Management" option.

3. Select an advertising campaign: On the advertising management page, you will see a list of all advertising campaigns. Click on the advertising campaign for which you want to view the bid adjustment record.

4. View the campaign: On the advertising campaign page, you will see a list of campaigns. Click on the campaign for which you want to view the bid adjustment record.

5. View the bid adjustment record: On the campaign page, find the "Bidding" column. Your bid adjustment record will be displayed here. You can view the changes in the bid in chronological order.

6. Download the bidding report: If you want to view a more detailed record of bid adjustments, you can click the "Download Report" button to download the ad bidding report. The report will contain a record of bid changes.

7. Analyze the reasons for bid adjustments: When viewing the bid adjustment records, please pay attention to analyzing the reasons for bid changes. This will help you understand market trends, competitor dynamics, and the effectiveness of your own advertising strategies.

8. Optimize advertising bidding strategies: According to the bid adjustment records and analysis results, adjust your advertising bidding strategies in a timely manner to improve advertising effectiveness and return on investment.

Please note that Amazon advertising bid adjustment records only apply to manual advertising bid adjustments. For automatic advertising, Amazon will automatically adjust the bid according to your bidding goals and budget settings. You can view the bid adjustments of automatic advertising through the above steps and make manual adjustments as needed.

When setting the advertising bidding strategy, be sure to make adjustments based on the actual situation and data analysis to achieve the best advertising effect and return on investment. At the same time, continue to pay attention to advertising performance and market dynamics, and optimize the advertising bidding strategy in a timely manner.