How do you create a custom report in SAP?

3. PARAMETERS: p_material TYPE matnr OBLIGATORY, p_date TYPE sy-datum OBLIGATORY. SELECT-OPTIONS: s_quantity FOR s_mara-mgvgw OBLIGATORY.

4. Retrieve Data:

   • Use ABAP code to fetch the data from the SAP database based on the user's input. You can use SQL statements like SELECT to retrieve data from database tables.
   ABAP

   SELECT * FROM mara INTO TABLE @DATA(result) WHERE matnr = @p_material AND ersda >= @p_date AND mgvgw IN @s_quantity.

5. Process Data:

   • Implement any necessary logic to process the retrieved data. This may include calculations, aggregations, or other business-specific operations.
   ABAP

   LOOP AT result INTO DATA(line). line-calculated_field = line-field1 + line-field2. ENDLOOP.

6. Display the Report Output:

   • Use ABAP statements to display the processed data on the screen. You can use the WRITE statement for simple output, or you may choose to use more advanced options like ALV (ABAP List Viewer) grids for tabular output.
   ABAP

   LOOP AT result INTO DATA(line). WRITE: / line-matnr, line-field1, line-field2, line-calculated_field. ENDLOOP.

7. Test the Report:

   • Execute the report using the F8 key or the "Execute" button. Test the report with different input values to ensure it behaves as expected.

8. Enhance and Optimize:

   • Refine and optimize the report as needed. Consider adding error handling, formatting options, and any additional features required by the business.

9. Transport the Report:

   • Once the report is complete and tested, transport it to other SAP systems (e.g., from a development system to a production system) using the transport management system (TMS).

10. Documentation:

    • Document the report thoroughly, including its purpose, usage instructions, and any technical details that might be relevant for maintenance or future development.

Remember that creating custom reports in SAP requires knowledge of the SAP ABAP programming language, SAP Data Dictionary, and other relevant SAP technologies. If you're not familiar with ABAP, consider involving an experienced SAP ABAP developer in the process. Additionally, adhere to your organization's development and naming conventions when creating custom reports.