Max

The Max action returns the largest value in a list of numbers. Use it to find the highest price, score or quantity in a list.

Add the action

In the Process Designer toolbox, open List, then Numeric, and pick Max (or type Max in the search box).

The Max action properties: Input a list of numbers and Result

Field	Direction	Type	Required	What to put / what you get
Input a list of numbers	Input	List of numbers	Yes	The numbers to compare, for example `[3,-7,12,5]`.
Result	Output	Number	Yes	The largest number in the list.

Input a list of numbers	Result
`[3,-7,12,5]`	`12`
`[1.5,2.75,"3"]`	`3`
`[]` (empty list)	The step fails: The input was not valid, please revise it.
`["a","b"]`	The step fails: The input was not a number. Please try again.

Numbers stored as text ("3") are compared as numbers.
The step fails on an empty list. If the list can be empty, check it first with Has Elements or Length.
Any element that is not a number makes the step fail.