Heartland Express · Rate Limits

Heartland Express Rate Limits

Heartland Express does not publish a public API rate-limit document. Throttling is governed by the shipper / 3PL agreement.

1 Limits Throttle: 429
TruckingTransportationLogisticsRate LimitingQuotasThrottling

Limits

Contract-defined per-partner limit partner
varies
see shipper / partner agreement

Policies

Backoff Strategy
Honor Retry-After on 429 and back off with exponential jitter on transient 5xx.
Tracking Polling Etiquette
For shipment-tracking polls, prefer event/webhook delivery where available rather than high-frequency polling.
Partner Scoping
Limits are enforced per partner credential.

Sources