Use the Split expression type to split the source value based on a delimiter and return the n value after splitting the value. This expression type is useful for splitting segment values from strings
Use parameters that follow this form:
split(Dimension, "delimiter", component number), where you select the character delimiter to a separates string, and the component of the string to return. For example, if the source account number is 110-20-312300-500 and you want to see the third component of the string, specify:
split(ACCOUNT, "-", 3). In this example, the result is: 312300.