ELEMENT_PC_SEQUENCE is a 5 digit numeric mandatory field which will determine the sequential order (1 to 99999) in which pay components are processed and displayed within the element.
With many elements, the sequencing is not important, because only the total value of the element is significant (e.g. a taxable wage base element). However, with certain elements, the order in which the pay components are processed is vital to the calculation (e.g. the deduction element for computing gross to net) or inherent to the nature of the element (e.g. element for ordering the pay components that will appear on a pay register).