This pertains to the version of GoldenGate 12.2 => 18.1
ADD HEARTBEATTABLE [, FREQUENCY number in seconds] [, RETENTION_TIME number in days] | [, PURGE_FREQUENCY number in days]
FREQUENCY = Specifies how often the heartbeat seed table and heartbeat table are updated. For example, how frequently heartbeat records are generated. The default is 60 seconds.
RETENTION_TIME = Specifies when heartbeat entries older than the retention time in the history table are purged. The default is 30 days.
PURGE_FREQUENCY = Specifies how often the purge scheduler is run to delete table entries that are older than the retention time from the heartbeat history . The default is 1 day.