Heartland Payment Systems · Rate Limits
Heartland Payment Systems Rate Limits
No public numeric rate limits are documented. Capacity is provisioned per merchant under the executed processing agreement.
1 Limits
Bill PayCard PresentCard Not PresentEcommercePayment ProcessingPaymentsPayrollPoint of SaleRate Limiting
Limits
Per-Merchant Capacity merchant
see merchant agreement / developer portal API reference
Heartland does not publish numeric per-API throttle ceilings. Card-network and processor-side controls (issuer, scheme, fraud) apply in addition to any platform throttle.
Policies
Backoff Strategy
Implement exponential backoff with jitter on 5xx and any 429-class responses; honor Retry-After when present.
Idempotency
Use the Portico Gateway's documented idempotency mechanisms (e.g. ClientTransactionId) to avoid duplicate authorizations on retry.
PCI Scope
Limit retries on PCI-scoped endpoints to avoid expanding cardholder-data exposure.
Capacity Uplift
Higher sustained throughput is provisioned by the Heartland implementation team during merchant onboarding.