Function GEN/8 is used to generate secondary wage types for partial periods. It reads the primary wage type from the input table (IT) and creates a corresponding secondary wage type with the same amount, number, and rate. The secondary wage type is then written to the input table (IT) with the same split indicator as the primary wage type. The function can generate up to 8 secondary wage types, depending on the parameter value. For example, if the parameter is 16, then the function will generate secondary wage types /801 to /816. The secondary wage types are used for proration, factoring, and valuation purposes in the payroll schema. References = US Payroll Sub-schemas explained in simple way, Payroll Schema