Solution : https://service.sap.com/sap/support/notes/459985 (SAP Service marketplace login required)
Summary : 
      This SAP Note provides detailed guidance on importing APO Support Package 18 for APO Release 3.0A. Key prerequisites include specific versions of BASIS, ABA, BW, and PlugIn components. Users are advised to consult related SAP Notes for existing release restrictions and ensure that their system components meet the minimum requirements outlined. Importing multiple Support Packages in a single queue starting from SR2 is recommended to optimize the process. Additional compatibility requirements involving liveCache and COM routines are specified to maintain system integrity and performance.
Key words : 
480839 apo-int-sls high / sp01 - sp18 490701 apo-fcs high / sp09 - sp19 505308 bc-db-lca high / sp01 - sp19 511867 apo-md-lo high / sp01 - sp05 515120 apo-fcs-extr high / sp01 - sp20 533134 bc-db-lca high / sp16 - sp20 459315 apo-pps-scf medium / sp01 - sp18 457069 apo-fcs medium / sp18 - sp18 483479 bc-db-lca medium / sp16 - sp18 special features, number component prio / validity 448538 apo-int-sls/apo-atp-bf-pac high / sp01 - sp18 / sp01-sp20, //sapservx/general/sapdb/lc_versions/<build>/ sapdb-server-<os>-<32/64-bit>-<pa>-<build>, //sapservx/specific/apo/apo30/sp18/sapcom30_27_nt, //sapservx/specific/apo/apo30/sp18/sapapo_18, full/nt/ sapdb-server-win-32bit-i386-7_2_5_14, //sapservx/specific/apo/apo30/<spn>/sapcom30_<build>, //sapservx/specific/apo/apo30/spn/sapapo_n, sp18 => build 27                     => sap note 459658, sp18 release restrictions            refer
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 |