Only take paths where all the conversions have an input:output ratio that is equal or better than the ratio of Amount:SendMax. See Limit Quality for details.
Do not use the default path; only use paths included in the Paths field. This is intended to force the transaction to take arbitrage opportunities. Most clients do not need this.
If the specified Amount cannot be sent without spending more than SendMax, reduce the received amount instead of failing outright. See Partial. Payments for more details.
Enum representing values for Payment Transaction Flags.