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Registers Gateway

Boolean functions

  • Last UpdatedSep 29, 2026
  • 1 minute read

Function / Aliases

Return

Description

Example

ISSET

Bool

True if expression is not empty/null

{{ @[AttributeID].isSet }}

ISUNSET / ISEMPTY

Bool

True if expression is empty/null

{{ if @[Field].isUnset then 'N/A' else @[Field] }}

ISTRUE

Bool

True if text equals "true" (case-insensitive)

{{ 'true'.isTrue }}

ISFALSE

Bool

True if value is null, empty, or "false" (case-insensitive)

{{ 'false'.isFalse }}

TRUE

Bool

Returns literal true

{{ true }}

FALSE

Bool

Returns literal false

{{ false }}

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