IS_FIRST_IN_ITERATION
Description
Returns TRUE the first time a given combination of evaluated expression values occurs in the current iteration, and FALSE for any duplicates after.
Syntax
IS_FIRST_IN_ITERATION(...expressions) -> Boolean
Parameters
| Parameter | Data Type | Required | Description |
|---|---|---|---|
| … expressions | Object | Yes | One or more expressions combined to determine if this is the first occurrence in the source data iteration. |
Example
IS_FIRST_IN_ITERATION(FirstName, LastName)
-- Returns TRUE for the first combination and FALSE for subsequent duplicates.