Solution : https://service.sap.com/sap/support/notes/890833 (SAP Service marketplace login required)
Summary : 
      This SAP Note addresses legal changes, bug fixes, and enhancements required for the year-end 2005 tax reporting. Key updates include the inclusion of income under section 409A in W-2 forms and corrections to federal and state electronic filing layouts. Importantly, these changes are crucial for HRSP implementation prior to 4th quarter tax processing in 2005. The note outlines specific modifications to federal layouts HR_F_MMREF_1 and HR_F_MMREF_2, state adjustments based on federal changes, and corrections to locality-specific layouts. Implementation details specify the required HRSP base for each SAP release, with necessary transports available for download. Additional checks and configuration validations are recommended post-implementation.
Key words : 
hr_f_mmref_1_ga hr_f_mmref_1_id hr_f_mmref_1_in hr_f_mmref_1_ma hr_f_mmref_1_md hr_f_mmref_1_me hr_f_mmref_1_mn hr_f_mmref_1_nc hr_f_mmref_1_ne hr_f_mmref_1_oh hr_f_mmref_1_ri hr_f_mmref_1_ut hr_f_mmref_1_va hr_f_mmref_1_wi hr_f_mmref_1_wv note, tax reporter -> tax form definition -> define original tax forms, w-2 related magnetic/electronic filing======================================federal layouts modified due, ==================================magnetic/electronic filingstate layouts modified due, pr wages tax form field 't001', add tax form group 'w001', - - - - - - - -  - - - -            base hr       included  release     sp, locality layouts modified due, state layouts modified due, tax form field pr04
Related Notes : 
       
| 906552 | W-2: Incorrect Reporting of Income under Section 409A | 
| 480180 | Download and installation of attachments for SAP notes | 
| 306543 | Substitute W-2 mag media format (eg. disk for tape) | 
| 305046 | Substitute UI mag media formats (e.g., disk for tape) | 
| 133613 | Formatting temse files for download | 
| 13719 | Preliminary transports to customers (note for customers) |