Invalid input
An API rejected the body after schema validation and fell back to Invalid input. when no more specific issue message was available. Used across auth, account, admin settings, checkout, upload, and more.
Why this happens
Required fields missing, wrong types, values out of range, or client bug sending an unexpected shape. Often the first Zod issue message is returned instead; this string is the last-resort fallback.
Diagnose and fix
1. Hard refresh and retry with complete form fields.
2. If you customize clients/API calls, compare the payload to the documented fields.
3. Check browser Network response for a more specific error string on retry.
4. Distinct from Invalid JSON body (body not parseable as JSON at all).