Set Routing Fallback
PUT/api/walmart/:integrationInstance/routing/fallback
Sets the account-wide fallback (layer 5) — what to send when no other layer identified a carrier.
This endpoint currently requires session authentication; Personal Access Token scope support is in progress.
mode is one of:
none— leave it unresolved and report an error (the default)carrier— sendwalmart_carriersuppress— deliberately send no carrier
walmart_carrier is required when mode is carrier.
Every change returns the COMPLETE refreshed routing configuration, not just the row that changed — the layers interact, so a partial response could disagree with what the next shipment would actually send.
Request
Responses
- 200
- 401
- 403
- 404
- 422
- 429
OK
Response Headers
Unauthenticated — the bearer token is missing, revoked, expired, or malformed. Never retry automatically; fix the credential. See the Errors guide.
Forbidden — the token lacks a required scope, the endpoint is not available to API tokens, or the user behind the token lacks the permission. A human must adjust the token scopes or user permissions; do not retry.
Not found — no record with the given identifier (or the route does not exist). Verify the ID before retrying.
Validation failed — the body is a field → messages map (Laravel shape) or the platform envelope with a stable machine-readable code. Fix the payload and resubmit.
Rate limited — platform limit is 1,000 requests/min; individual tokens may carry lower limits. Honor the Retry-After header before retrying. See the Rate Limits guide.