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Get(PersistentID) Purpose Returns text representing a unique identifier of the computer or device on which FileMaker is running. Format Get(PersistentID) Parameters None Data type returned text Originated in FileMaker Pro 12.0 Description Returns a unique, unchanging identifier for the computer on which FileMaker Pro is running, the device on which FileMaker Go is running, or the current FileMaker WebDirect session in the form of a 32-digit hexadecimal string. Get(PersistentID) helps you identify devices that access your solution. Notes • If web browser cookies are cleared during a FileMaker WebDirect session, the value returned by Get(PersistentID) changes. • For information on how functions evaluate differently on the host versus the client, search the FileMaker Knowledge Base available at http://help.filemaker.com. Examples For a FileMaker Pro client or a FileMaker Go client, Get (PersistentID) returns a value such as 78569d0bd40b898a64e7d08ccdea8220. Related topics Functions reference (category list) Functions reference (alphabetical list) About formulas About functions Defining calculation fields Using operators in formulas