Privacy Policy

1. Who we are

LZ Digital Ads Management Tool is operated by Wenzhou Lingzhi Digital Technology Co., Ltd., doing business as LZ Digital ("LZ Digital," "we," "us," or "our"). We provide Google Ads monitoring, reporting, and advertising optimization services to business customers.

2. Scope of this policy

This policy applies to LZ Digital Ads Management Tool, our use of the Google Ads API and Google OAuth 2.0, and the related Google user data that customers authorize us to access. It also briefly explains information collected through the lzdigital.ai website.

3. Google data we access

Depending on the service requested and the permissions granted, LZ Digital Ads Management Tool may access Google Ads account data such as:

• Google Ads customer and account identifiers;
• campaigns, ad groups, ads, assets, keywords, targeting settings, and budgets;
• performance and reporting metrics, including impressions, clicks, cost, and conversions;
• recommendations, account settings, and change information needed to monitor or optimize the account; and
• OAuth access and refresh tokens required to authenticate authorized API requests.

We request only the permissions and data reasonably necessary to provide the authorized services. We do not use Google Ads access to obtain data from accounts that the customer has not authorized.

4. Customer authorization and account access

We access a Google Ads account only after the customer or an authorized account administrator grants access through Google OAuth or another Google-approved account authorization method. Access is limited to the accounts and permissions covered by that authorization.

Customers remain in control of their Google Ads accounts. They may revoke our access at any time through their Google Account permissions, Google Ads account access settings, or by contacting us.

5. How we use Google user data

We use authorized Google Ads data only to provide and support services requested by the customer, including:

• monitoring account status, delivery, spend, and performance;
• creating dashboards, analyses, alerts, and reports for the customer;
• identifying performance issues and optimization opportunities;
• making advertising changes or recommendations that the customer has authorized;
• maintaining, securing, auditing, and troubleshooting LZ Digital Ads Management Tool; and
• complying with applicable law and enforcing our agreements.

We do not use Google user data for unrelated advertising, consumer profiling, or any purpose that is not disclosed in this policy and authorized by the customer.

6. Data sharing, cross-customer isolation, and sale

We do not sell Google user data. We do not share one customer's Google Ads account data with another customer, and customers cannot view each other's data.

We may disclose data only in the following limited circumstances:

• to service providers that host, secure, or support LZ Digital Ads Management Tool, only as necessary to perform services for us and subject to confidentiality and data-protection obligations;
• when directed or expressly authorized by the customer;
• when required by law, legal process, or a valid governmental request; or
• to protect the rights, security, and integrity of customers, LZ Digital, or the public.

We do not allow service providers to use Google user data for their own advertising, marketing, or independent purposes.

7. Storage and security

OAuth credentials and Google Ads data are stored on access-controlled systems. We use administrative, technical, and organizational safeguards designed to protect this information, including:

• encryption in transit using HTTPS/TLS and encryption at rest;
• secure storage of application secrets and OAuth credentials, separate from publicly accessible source code;
• least-privilege access controls limited to authorized personnel who need access to provide or support the service;
• authentication, logging, monitoring, patching, and other security controls appropriate to the system; and
• procedures to revoke and delete credentials when access is no longer required.

No system can guarantee absolute security. If we become aware of a security incident affecting customer data, we will investigate, contain, and notify affected parties as required by applicable law and our agreements.

8. Data retention and deletion

We retain OAuth credentials and Google Ads data only for as long as necessary to provide the authorized service, maintain security and audit records, resolve disputes, or meet legal obligations.

When a customer revokes authorization, terminates the service, or submits a verified deletion request, we stop accessing the applicable Google Ads account and revoke or delete the associated OAuth credentials. Unless a longer period is legally required, we delete the applicable stored Google Ads account data and credentials from our active systems within 30 days. Data that must be retained by law will be isolated, access-restricted, and used only for that legal purpose.

Aggregated or de-identified information that cannot reasonably identify a customer, user, or Google Ads account may be retained for security, service reliability, and statistical purposes.

9. Revoking access and requesting deletion

Customers may stop our access or request deletion at any time by:

• revoking LZ Digital's access in the Google Account third-party connections page;
• removing the applicable access through Google Ads account access settings; or
• emailing info@lzdigital.ai with the company name, Google Ads customer ID, and the requested action.

We may take reasonable steps to verify the requester's identity and authority before changing access or deleting data. Revoking access prevents future API access but does not automatically delete information that was previously stored; contact us if deletion is also required.

10. Website and inquiry information

When someone visits lzdigital.ai or submits an inquiry form, we may receive contact details and business information they choose to provide, along with technical and analytics information such as device/browser details, referring pages, approximate location, and interactions with the website. We use this information to respond to inquiries, operate and improve the website, understand marketing performance, prevent abuse, and comply with legal obligations.

Website analytics and inquiry information is not used to access a person's Google Ads account. Google Ads account access requires separate authorization as described above.

11. Changes to this policy

We may update this policy to reflect changes in LZ Digital Ads Management Tool, our data practices, or legal requirements. We will post the revised policy at this URL and update the "Last updated" date. If a material change affects how previously authorized Google user data is used, we will provide appropriate notice and obtain additional consent where required before using the data for the new purpose.

12. Contact us

For privacy questions, requests to stop account access, or requests to delete data, contact: