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Automate Your Business Processes
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            Global Constants Flow Approval Processes Resource

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            Global Constants Flow Approval Processes Resource

            Use fixed, system-provided values such as EmptyString, True, and False.

            Required Editions

            View supported editions for Flow Approval Processes.
            Global Constant Supported Data Types
            {!$GlobalConstant.True} Boolean
            {!$GlobalConstant.False} Boolean
            {!$GlobalConstant.EmptyString} Text
            Example
            Example

            When you create a Boolean variable, $GlobalConstant.True and $GlobalConstant.False are supported. When you create a Currency variable, no global constants are supported.

            Null Versus Empty String

            At run time, {!$GlobalConstant.EmptyString} and null are treated as separate, distinct values. For example:

            • When you leave a text field or resource value blank, the value is null at run time. If you want the value to be treated as an empty string, set it to {!$GlobalConstant.EmptyString}.
            • For a flow approval process condition, use the is null operator to check whether a value is null. If the condition compares two text variables, make sure that their default values are correctly set to {!$GlobalConstant.EmptyString} or left blank (null).
             
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