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ShiftGraph

HTTP 409, authentication and identity

AUTH-010

This sign-in method is already linked.

What it means

The provider identity is already connected, either to this account or to another one. ShiftGraph never links an external identity to an existing account automatically by matching addresses.

What to do

Sign in with the method already connected, then manage connections under Account, Security.

The response

Every failure arrives in this shape. The trace_id is worth keeping: it identifies the request in our logs and carries nothing about your data.

{
  "type": "https://shiftgraph.dev/errors/AUTH-010",
  "title": "This sign-in method is already linked.",
  "status": 409,
  "code": "AUTH-010",
  "trace_id": "01J8Z…"
}

Related codes

Sessions, second factors, sign-in methods, and the credentials that reach the API. A second factor is required of every account, so several of these have no bypass by design.

The full error reference, or write to support@shiftgraph.dev with the trace id.