Tax User Guide Build Tax Components FATCA Withholding Rules Specify System Data Elements 1.5.2 Specify System Data Elements On FATCA Rule Maintenance screen, click System Data Elements button and specify the fields. Note:The fields which are marked in red asterisk are mandatory. For more information on fields, refer to the field description table. Table 1-12 System Data Elements - Field Description Field Description System Data Elements Specify the system data elements. You can also select the valid SDE from the adjoining option list. Click the Exit button to close the screen. Parent topic: FATCA Withholding Rules