Error Code Portal
GoogleFirebase Authentication Admin SDKError code

auth/claims-too-large

claims too large

What does this code mean?

Code auth/claims-too-large · An issue reported by Firebase Authentication Admin SDK.

Official explanation · Original text

The claims payload provided to setCustomUserClaims() exceeds the maximum allowed size of 1000 bytes.

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

Firebase Admin Authentication API Errors ↗

Creator: Google LLC
License: Creative Commons Attribution 4.0 International
Checked on: 2026-11-12

Modifications: Extracted official error code and description/resolution table; HTML stripped; short code name and original Korean context added. No source-page analytics scripts are redistributed in rendered pages.

Source details · Original licenses and notices