Winst Advertising Automation広告運用アプリの プライバシーポリシー

Privacy Policy — Winst Advertising Automation

English Version — Effective 14 September 2026

1. Scope

Winst Inc. ("we", "us") manages Amazon selling accounts for brands ("customers"), including advertising. This policy covers our application Winst Advertising Automation, which uses the Amazon Ads API (the "Application"). Our website and our Selling Partner API application (Winst Report Automation) are covered by our Privacy Policy; its description of the limits on write operations applies to Winst Report Automation only, not to this Application.

2. Information we collect

• Information identifying the connected advertising account (profile)
• Campaign, ad group, ad, keyword, targeting, negative targeting, bid and budget settings
• Advertising performance such as impressions, clicks, spend, sales and orders
• Reports such as search term, placement and purchased product reports
• Name, company and email address provided when you contact us

3. Information we do not collect

• No personally identifiable information about buyers.
• We do not hold your Amazon account credentials to connect the Application.

4. How we use the information

• To manage your advertising and prepare and deliver monthly and weekly advertising reports
• To adjust advertising settings within the scope you permit
• To respond to enquiries

5. Scope of changes to advertising settings

The Application changes advertising settings only when the authorizing user has edit permission and only within the scope you permit. With view-only permission, no settings are changed.

6. Storage and protection

• Communication with the Amazon Ads API is encrypted with TLS.
• Access to retrieved data is limited to our staff in charge.
• Each customer's data is handled separately.

7. Disclosure to third parties

• We do not sell or provide the data to third parties, unless required by law.
• We do not calculate or publish insights about Amazon's business.

8. Retention and deletion

• We keep data only as long as needed for the purposes above and delete data that is no longer needed.
• We delete your data after the service agreement ends, after authorization is revoked, or at your request.
• We delete data within the period Amazon specifies when Amazon requests deletion.

9. Your right to revoke

You can revoke the Application's authorization at any time from your Amazon account settings, or by contacting us. Authorization must be renewed every 365 days, as required by Amazon.

10. Incident response

Security incidents are handled in line with Amazon's procedures, including reporting to Amazon. To report a vulnerability or incident, email info@winst.co.jp with "Security" in the subject. We log each report, investigate and respond, and report the outcome.

11. Compliance

We comply with the Amazon Advertising API License Agreement, the Amazon Ads API Data Protection Policy and Acceptable Use Policy, and other related Amazon terms.

12. Applicable law

We comply with the Act on the Protection of Personal Information and other laws of Japan. Requests for disclosure of personal information provided when contacting us can be made through the contact below.

13. Changes to this policy

Changes will be posted on this page.

14. Contact

Winst Inc. — 3F KRP Building No.4, 93 Chudoji Awata-cho, Shimogyo-ku, Kyoto 600-8815, Japan / info@winst.co.jp