This document provides steps to create a generic delta data source in SAP BW/4HANA. It outlines 8 steps: 1) Select transaction SBIW, 2) Create a generic data source and select its type and name, 3) Assign an application component and enter descriptive texts selecting generic delta, 4) Specify the delta field and type, 5) Select the delta type as new status or additive, 6) Save and the data source is generated, 7) Save again and the delta update flag is selected, 8) Delta attributes can then be monitored in the delta queue. The document also notes that LUW count does not equal changes in the source table.