Troubleshooting notes — Azure Table Storage 403 Authentication

Symptom Calling Azure Table Storage REST API returns: 403 Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature. Even though Authorization header looks valid Root Cause The request is missing x-ms-version header Azure Storage requires this header to determine the API version used for request validation. Without it, the service may reject the request with a misleading authentication error. Fix Add header ...

February 22, 2026 · 1 min