4.3.3.1.4 Expression Mapping The Expression step enables you to transform or derive target business terms using logical expressions or formulas based on source entity data. Navigate to the Expression tab (Step 5 of 7 in the connector setup wizard) and view the list of Target Business terms and their mapped source entity. Figure 4-11 Expression Tab You'll be mapping a target business term to a derived value using a SQL-like expression. Review the mappings in the next steps and submit the connector setup when done.