Handlebar Helper Function: Concat

Combines multiple values into a single string.

This helper is available in the Winter ’26 release of Marketing Cloud Next (API version 65.0).

Parameter	Type	Description
value1	Any	Required. The first value to concatenate.
value2	Any	The second value to concatenate.
...	Any	Additional values to concatenate.

The function returns a single string with all input values concatenated together. Each value is converted to a string representation before concatenation. Arrays are converted by concatenating their elements as strings. Null values are skipped during concatenation. The function throws an exception if no arguments are provided.