[Bug] Google Workspace Node: "Error fetching options" on new OrgUnitPath parameter

Bug Description

n8n Version: 2.39.0+

Operation: User -> Create / Update

Description Since version 2.39.0, when trying to select the new OrgUnitPath parameter using the dynamic dropdown interface in the Google Workspace node, it fails to load the available Organization Units.

Error Message Error fetching options from Google Workspace Admin

Issues: - There was a problem loading the parameter options from server [object Object]

Additional Information / Workaround Workaround: Toggling the parameter input mode to Expression or Fixed and manually entering the path (e.g., / or /Sales) allows the node to execute successfully.

Credentials: The Service Account / OAuth credentials used have full access and work without issues when calling the Google Admin SDK directly via an HTTP Request node.

Probable Root Cause: The issue appears to be isolated to the loadOptions helper method for OrgUnitPath within the node's UI schema.

To Reproduce

Steps to Reproduce Add a Google Workspace node to a workflow.

Set the Resource to User and Operation to Create or Update.

Add the OrgUnitPath field under Additional Fields.

Keep the field in default dropdown mode (attempting to auto-fetch options).

Actual Behavior The node fails to fetch the options from the Google Admin SDK API and throws the [object Object] error modal.

Expected behavior

Expected Behavior, if I understood correctly The node should successfully list the existing Organization Units from the Workspace domain.

Debug Info

Error fetching options from Google Workspace Admin

Issues: - There was a problem loading the parameter options from server [object Object]

Operating System

Debian Linux 13.6 (trixie)

n8n Version

2.39.5

Node.js Version

22.22.3

Database

PostgreSQL

Execution mode

main (default)

Hosting

self hosted