Transactions are typically on Heartland systems for less than 600ms, but the POS system needs to allow sufficient time to receive a response, including considerations for network latency, processing delays, or other issues. Portico waits for other back-end systems to reply, which can vary by transaction type:

Portico recommends that the POS timeout value be set at least a few seconds above the Portico timeout value.

• If Portico returns a GatewayRspCode of 30 for a financial transaction, the POS should initiate a reversal using the GatewayTxnId. (For ACH transactions, use CheckVoid.)        
• If the transaction does not receive a response from Portico for a financial transaction, a reversal should be initiated using the ClientTxnId. (For ACH transactions, use CheckVoid.)

For the FindTransactions report, actual response time depends on the amount of data and the date range of the search. To improve response time, adjust the criteria being used to obtain a smaller result set.

For Payment facilitator sub-merchants, Portico recommends a POS timeout of 150 seconds for all financial transactions.