Winst Advertising AutomationAmazon出品ブランド向け 広告運用アプリ

Winst Advertising Automation

English

What the application does

Winst Inc. manages Amazon selling accounts for brands, including the design, management and reporting of sponsored advertising. Winst Advertising Automation is the application we provide for that advertising work.

After a brand authorizes the application on Amazon's official consent screen, it connects to that brand's advertising account, retrieves advertising reports for monthly and weekly reporting, and may adjust advertising settings such as bids, budgets and keywords within the scope the brand permits. What it can do is limited to the permissions of the user who granted the authorization. Winst Inc. operates the application on each brand's behalf. The limits on write operations described for our Selling Partner API application (Winst Report Automation) do not apply to this application.

Status: in service since October 2026 for brands that have authorized the application.

Features

• Report retrieval — for Sponsored Products, Sponsored Brands and Sponsored Display, the reports available for each ad type, such as campaign, keyword and targeting, search term, placement and purchased product reports.
• Advertising reports — ad spend, sales, ACOS (spend ÷ attributed sales), ROAS (attributed sales ÷ spend) and cost per click, calculated from values returned by the Amazon Ads API, with the period and retrieval date stated on each report.
• Campaign adjustments — bids, budgets, keywords and negative keywords, targets, and enabling or pausing campaigns may be adjusted within the scope the brand permits.

Advertising metrics are updated over time and may change after retrieval. The application does not guarantee any advertising results.

Data we access and why

• Advertising account (profile) information — To identify the connected advertising account.
• Campaign, ad group and ad settings — To understand the current structure, bids and budgets.
• Keyword, targeting and negative settings — To understand which search terms and products ads are shown for.
• Performance (impressions, clicks, spend, sales, orders) — To prepare monthly and weekly advertising reports.
• Search term reports — To review keywords based on performance by search term.
• Placement reports — To understand performance by placement.
• Purchased product reports — To understand which products were purchased through ads.

Data we do not collect

• No personally identifiable information about buyers.
• We do not hold a brand's Amazon account credentials to connect the application. Access is granted through Amazon's consent screen.

Permissions

• What the application can do is limited to the permissions of the authorizing user (for example, view access to advertising reports or view-and-edit access to campaigns).
• With view-only permission, the application only reads data and does not change advertising settings.

Data handling

• Data is used for the brand's advertising management and reporting, handled separately for each brand, and not used in reports for another brand.
• Data is not sold or provided to third parties, unless required by law.
• We do not calculate or publish insights about Amazon's business.
• We retrieve only the data we need and delete data that is no longer needed.

Authorization and revocation

• Brands authorize the application on Amazon's consent screen, which links to this application's privacy policy.
• Authorization must be renewed every 365 days, as required by Amazon. We contact brands before it expires.
• Brands can revoke access at any time from their Amazon account settings, or by contacting us.

Pricing

The application is free (pricing model: free). It is included at no additional cost in our account management service, which is quoted monthly. Advertising costs are paid by the brand directly to Amazon. Quotes can be requested through our quote request form.

Security and reporting

• Communication with the Amazon Ads API is encrypted with TLS.
• Access to retrieved data is limited to our staff in charge.
• Security incidents are handled in line with Amazon's procedures, including reporting to Amazon.
• To report a vulnerability or a data handling concern, email info@winst.co.jp with "Security" in the subject. We log each report, investigate and respond, and report the outcome.

Company

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