> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.bigcommerce.com/_mcp/server.

# Unions

> Build amazing commerce solutions powered by the BigCommerce platform


## API Docs

- Unions [AddLocaleError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/add-locale-error.md)
- Unions [CheckGoogleAgenticCommerceEligibilityError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/check-google-agentic-commerce-eligibility-error.md)
- Unions [CheckGoogleAgenticCommerceUcpProgramError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/check-google-agentic-commerce-ucp-program-error.md)
- Unions [CreateEventBridgeWebhookError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/create-event-bridge-webhook-error.md)
- Unions [CreateHttpsWebhookError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/create-https-webhook-error.md)
- Unions [CreateMetafieldErrors](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/create-metafield-errors.md)
- Unions [CreatePubSubWebhookError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/create-pub-sub-webhook-error.md)
- Unions [DeleteISellToError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/delete-i-sell-to-error.md)
- Unions [DeleteLocaleError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/delete-locale-error.md)
- Unions [DeleteMetafieldErrors](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/delete-metafield-errors.md)
- Unions [DeleteTranslationsError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/delete-translations-error.md)
- Unions [DeleteWebhookError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/delete-webhook-error.md)
- Unions [DisconnectGoogleAccountLinkError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/disconnect-google-account-link-error.md)
- Unions [GenerateGoogleAccountLinkUrlError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/generate-google-account-link-url-error.md)
- Unions [MetafieldsNodeType](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/metafields-node-type.md)
- Unions [ProductCustomFieldOverrides](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/product-custom-field-overrides.md)
- Unions [ProductImagesOverrides](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/product-images-overrides.md)
- Unions [ReassignMetafieldOwnerError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/reassign-metafield-owner-error.md)
- Unions [SetProductUrlPathError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/set-product-url-path-error.md)
- Unions [SiteRedirectTo](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/site-redirect-to.md)
- Unions [UpdateEventBridgeWebhookError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/update-event-bridge-webhook-error.md)
- Unions [UpdateGoogleAgenticCommerceSetupError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/update-google-agentic-commerce-setup-error.md)
- Unions [UpdateHttpsWebhookError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/update-https-webhook-error.md)
- Unions [UpdateISellToError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/update-i-sell-to-error.md)
- Unions [UpdateLocaleError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/update-locale-error.md)
- Unions [UpdateMetafieldErrors](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/update-metafield-errors.md)
- Unions [UpdatePubSubWebhookError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/update-pub-sub-webhook-error.md)
- Unions [UpdateTranslationsError](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/update-translations-error.md)
- Unions [WebhookEventDataFilterValuesUnion](https://docs.bigcommerce.com/developer/api-reference/graphql/admin/types/unions/webhook-event-data-filter-values-union.md)