Docs / Utility
GUID is an AMPscript function in the utility category.
GUID()
%%=GUID()=%%
75ebbc04-55a3-422e-bd69-a191b9acb131
Output produced by AmpSend's AMPscript engine (validated against Salesforce's own test corpus) - not a hand-written result.
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GUID in the official AMPscript reference - or browse the official index of AMPscript functions for platform behavior and edge cases.