Custom GPT Privacy Policy

Last Updated: April 30, 2026

Plain-English summary: GDK Digital Custom GPTs help users analyze business documents and produce work outputs. We use information only to provide, secure, support, and improve the requested workflow. We do not sell user data. Some data may be processed by OpenAI, Google, hosting providers, or other service providers depending on the GPT features you use.

Table of Contents

1. Scope

This policy applies to Custom GPTs, GPT Actions, connected-app workflows, and AI-assisted business tools operated or configured by GDK Digital LLC, including GPTs built for estimating, scope clarification, document review, job handoff, product research, and similar business workflows.

This policy supplements the general GDK Digital Privacy Policy. If a specific GPT or service has a product-specific policy, the product-specific policy controls for that service.

OpenAI, Google, and other third-party services may process your information under their own policies when you use ChatGPT, connected apps, OAuth, Google Drive, or external APIs.

2. Platform Roles

Surface What it does Who controls it
ChatGPT conversation Processes prompts, uploaded files, and GPT responses inside ChatGPT. OpenAI controls ChatGPT platform processing under OpenAI policies.
GDK Digital Custom GPT instructions and knowledge Defines the GPT behavior, reference material, workflow rules, and source documents loaded by the builder. GDK Digital controls builder-provided configuration and knowledge files.
Connected apps such as Google Drive Allows the GPT to read, search, create, or update user-authorized files depending on the connection and permission scope. The connected app provider and the user-authorized account control access permissions.
GPT Actions or private APIs Allows ChatGPT to send relevant request data to a GDK Digital endpoint or approved third-party endpoint to retrieve, calculate, save, or export data. GDK Digital controls GDK-operated endpoints. Third parties control their own endpoints.

3. Information We Collect

3.1 Information you provide

3.2 Information generated by the GPT or actions

3.3 Automatically collected technical information

4. Uploaded Files and Job Documents

Custom GPT workflows often depend on user-provided documents. These may include contracts, sales sheets, EagleView or Hover reports, supplier sheets, labor sheets, window quotes, job photos, drawings, and internal operating documents.

5. Google Drive and Connected Apps

Some GPTs may use Google Drive, Google Docs, Google Sheets, or similar connected apps to retrieve or update knowledge files, pricing sheets, job documents, or research files.

6. GPT Actions and APIs

GPT Actions connect ChatGPT to external APIs. When an action is used, ChatGPT may send relevant parts of your conversation, uploaded data, or generated output to the action endpoint so the endpoint can complete the request.

7. How We Use Information

8. Sharing and Service Providers

We do not sell your personal information, job documents, Google Drive content, or uploaded business files.

We may share information only as needed for the following purposes:

9. Retention

Data type Retention approach
ChatGPT conversations and files Handled under OpenAI's retention and workspace settings unless separately sent to or stored by GDK Digital.
GDK action logs Kept only as long as reasonably needed for security, debugging, audit, and operations, unless a longer period is required by law.
Saved jobs and exports Retained until deleted by the user, organization, or administrator, or until no longer needed for the service.
Google Drive files Remain in the user's Google account unless a user-authorized workflow copies, updates, or exports them to another location.
Support communications Retained as needed to answer requests, maintain service records, and resolve disputes.

When information is no longer needed, we delete, anonymize, or de-identify it where practical and legally permitted.

10. Security

We use reasonable administrative, technical, and organizational safeguards designed to protect information. These may include HTTPS/TLS, access controls, least-privilege permissions, encrypted secrets, logging minimization, vendor controls, and review of action schemas and endpoints.

No internet or AI system can be guaranteed to be completely secure. Users are responsible for controlling what they upload, who can access shared folders, and whether uploaded documents contain sensitive information.

11. Your Choices and Rights

OpenAI account-level rights, ChatGPT conversation controls, and connected-app controls must be managed through OpenAI, Google, or the relevant provider.

12. Children's Privacy

GDK Digital Custom GPTs are business tools and are not directed to children under 13. We do not knowingly collect personal information from children through these GPTs. If you believe a child has provided personal information to a GDK Digital system, contact us and we will take appropriate steps.

13. AI Output Limitations

Custom GPT outputs may be incomplete, inaccurate, or based on limited source documents. Do not treat GPT output as final legal, financial, engineering, code, safety, warranty, permitting, or material-ordering advice without qualified human review. Assumptions, blockers, and source limitations should be reviewed before field use or ordering.

14. Changes

We may update this policy as GPT features, connected apps, action endpoints, vendor relationships, or legal requirements change. We will update the date above and post the revised policy at this URL. Material changes may also be communicated through product, website, or account notices where appropriate.

15. Contact

GDK Digital LLC

P.O. Box 85

Benton Harbor, MI 49023

United States

Email: info@gdkdigital.com

Support: support@gdkdigital.com

Phone: 1-877-GDK-DIGITAL (1-877-435-3424)