Solution : https://service.sap.com/sap/support/notes/1170563 (SAP Service marketplace login required)
Summary : 
      SAP Note highlights a discrepancy in depreciation calculations using BAdI FAA_DC_CUSTOMER for setting different calculation parameters (method SET_PARAMETER). Certain parameters—BASEVAL_FACTOR, BASEVAL_KEY, MINVAL_PERCENT, MINVAL_STATED, MINVAL_PERC_ADD, and MINVAL_STATED_ADD—are not being factored into the calculations due to a program error. The remedy involves implementing provided source code corrections to address this issue, ensuring accurate financial reporting and compliance with accounting standards.
Key words : 
attached source code corrections, additional amount-based scrap, set differing calculation parameters, change depreciation terms, percentage rate/cutoff, percentage rate valid, additional scrap, percentage rate, depreciation calculation, business add-
Related Notes : 
       
| 1131960 | Documentation: Business Add-Ins for new deprec. calculation | 
| 965671 | Taking the cutoff value for next year into account | 
| 965032 | Differences between old and new depreciation calculation |