Solution : https://service.sap.com/sap/support/notes/532619 (SAP Service marketplace login required)
Summary : 
      This SAP Note provides guidance on importing APO Support Package 21 (SAPKY30A21) for APO Release 3.0A. Key steps include updating SPAM Manager to the latest version, downloading the required Transportation Planning (TP) version from the Service Marketplace, and ensuring system prerequisites are met according to detailed documentation on the website. The Note emphasizes using the latest TP and mentions restrictions in note 427957 related to previous APO Support Releases. Importation should adhere to a sequence ensuring all necessary SAP components (BASIS, ABA, BW, APO) are updated while considering the specific settings and dependencies outlined in the provided references.
Key words : 
higher 545318 apo-pps-heu-pp high / sp19 - sp21 565415 apo-apo-pps-dst-pre high / sp21 - sp22 564625 apo-pps-dst-pre high / sp21 - sp22 537485 apo-pps high / sp21 575751 apo-pps-ppt high / sp21 - sp22 569993 apo-fcs-rlg high / sp21 558302 apo-pps-heu-pp high / sp20 - sp22, high / sp21 - sp24 535958 apo-fcs high / sp20 - sp21 499200 sd-bf-ac high / sp21, number component priority   validity 624570 scm-apo-fcs-mac high /, sp21 634085 apo-fcs-rlg, /scm-> mysap scm technology-> platforms & system requirements-> availability, sap basis -> sap aba -> sap bw -> sap apo, /swcenter-main-> sap apo-> sap apo 3, /swcenter-main -> sap apo -> sap apo 3, /scm-> mysap scm technology-> availability, support release 2 includes apo support package 1 - 8
Related Notes : 
       
| 533076 | Importing a liveCache version as of 7.2.5 B18 | 
| 456637 | Correction to note 438134: /sapapo/ts_lcm_cons_check | 
| 454998 | ATD quantities are ignored | 
| 453362 | Consideration of the maximum lot size in deployment | 
| 453292 | Opening stock is incorrect | 
| 452394 | TLB order disappears after transfer to R/3 | 
| 449518 | Termination if deployment horizon too large | 
| 448215 | Incorrect unit display during manual creation of an order | 
| 446335 | Use planning area unit in TLB Part 2 | 
| 443834 | SNPFCST Incorrect data transferred and messages | 
| 442764 | SAPKY30A16 deletes texts for InfoObjects | 
| 435833 | APO 3.0 Optimizer Support Package 16 | 
| 432027 | Strategy for using SAP Support Packages | 
| 427957 | Release restrictions for APO 3.0A Support Release 3 | 
| 424886 | Parameter values as of liveCache Version 7.2.5 | 
| 422446 | APO front end patch | 
| 410002 | Setting for MAXCPU as of liveCache 7.2.5 Build 4 | 
| 406248 | liveCache Connect problems | 
| 391746 | COM Routines and liveCache Versions on UNIX | 
| 373047 | Error in field input processing | 
| 361222 | SapPatch: Importing GUI Patches | 
| 328237 | Importing Support Packages into a BW 2.0B system | 
| 325402 | dbadaslib/dbsdbslib: How do I apply a patch? | 
| 314218 | Transaction data conversion between SPs for APO 3.0 | 
| 300930 | APO 3.0: Importing an optimizer version | 
| 157265 | Exchanging COM objects for liveCache in APO 3.0 | 
| 147519 | Maintenance strategy / deadlines for SAP GUI | 
| 147218 | SAP APO Demand Planning - datamart ==> BW patches |