Docs / Utility

IsNull()

IsNull is an AMPscript function in the utility category.

Syntax

IsNull(value)

Example

%%=IsNull(Lookup("Loyalty", "Tier", "EmailAddress", "nobody@example.com"))=%%

True

Output produced by AmpSend's AMPscript engine (validated against Salesforce's own test corpus) - not a hand-written result.

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Official Salesforce documentation

IsNull in the official AMPscript reference - or browse the official index of AMPscript functions for platform behavior and edge cases.

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