How to fix authentication errors when connecting Google Sheets to reporting tools

using Coefficient google-sheets Add-in (500k+ users)

Resolve Google Sheets authentication errors with managed OAuth flows and comprehensive permission handling. No more expired tokens or access denied messages.

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Authentication errors happen when OAuth tokens expire, permission scopes are insufficient, or API credentials change unexpectedly. Native Google Sheets connections fail to handle these scenarios gracefully, requiring constant manual troubleshooting.

Here’s how to eliminate authentication headaches and establish stable data connections that maintain themselves automatically.

Bypass authentication problems using Coefficient

CoefficientHubSpothandles authentication management through enterprise-grade systems that request comprehensive permissions upfront and maintain them indefinitely. When connecting to, the platform automatically includes e-commerce permissions for engagement objects and handles the complete OAuth flow properly.

How to make it work

Step 1. Establish connections through Coefficient’s “Connected Sources” menu.

Instead of direct API calls, use Coefficient’s managed authentication system. The platform requests all necessary permission scopes during initial setup and maintains credential validity automatically without your intervention.

Step 2. Let the platform handle comprehensive permissions.

Coefficient requests Super Admin access and complete permission sets during connection setup. This prevents the trial-and-error cycle of discovering missing permissions after your integration is already built.

Step 3. Monitor connection status with clear error messaging.

When permission issues arise, Coefficient shows specific error messages explaining exactly what’s wrong instead of vague “unauthorized” or “access denied” messages that leave you guessing.

Step 4. Import data with stable, long-term authentication.

Set up your data imports knowing that authentication will persist indefinitely. The platform refreshes credentials before expiration and handles permission renewal behind the scenes.

Stop fighting authentication failures

Start usingEnd the cycle of expired tokens and permission errors that break your reporting workflows.Coefficient for authentication that actually works reliably long-term.

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