Theunion()function in Appian combines the elements of two or more arrays into a single array, removing any duplicate values. Given that the rule inputsri!fruitandri!vegetablesare configured as text arrays, the expected output ofunion(ri!fruit, ri!vegetables)would be an array containing all unique items from bothri!fruitandri!vegetables, with any duplicates removed. This function is useful for combining lists without repetition, ensuring a clean, unique set of elements.References:Appian Documentation - Expression Functions
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