Maximum Distributed Points
The max distributed points option allows you to specify a fixed number for the maximum amount of points that the customer can earn as a result of this rule.
For example, if you're rewarding customer 1 point for every $1 spent, and the cart is a total of $1000 but you "Maximum Distributed Points" setting is 500, then the customer will only earn 500 points total.
By default, the value '0' or empty does not limit the amount of points that can be earned by the customer using this rule.
In general, this option is only useful if the points action is NOT fixed.