Solution : https://service.sap.com/sap/support/notes/675156 (SAP Service marketplace login required)
Summary : 
      This SAP Note guides the user on importing APO Support Package 26 (SAPKY30A26) into APO Release 3.0A systems. Users are informed about the survey for feedback on SCM Support Packages via a provided link. Important details include compatibility notes for SNP heuristics and liveCache 7.4.2.xx, as well as prerequisites for proper installation. The instruction emphasizes updating the SPAM manager before starting the import and specifies the sequence for importing components (BASIS, ABA, BW, and APO). Users are advised to install SAP Notes post-import based on their system's relevance and to follow a specific order for patch imports to ensure system stability and functionality.
Key words : 
624570 scm-apo-fcs-mac high / -- 682827 scm-apo-atp-prd-pl high / sp27, /scm                     -> mysap scm technology                     -> backup & recovery                     -> link, /scm-> mysap scm technology-> platforms & system requirements-> availability, components 571027 bc-fes-ctl-f4 high / sp45, survey sap scm support packages dear customers, 584786 bw-bex-ot-olap medium / sp36, sap basis -> sap aba -> sap bw -> sap apo, /scm-> mysap scm technology-> availability, builds-> overview matrix sap apo 3, /patches -> sap apo -> sap apo 3
Related Notes : 
       
| 533076 | Importing a liveCache version as of 7.2.5 B18 | 
| 448215 | Incorrect unit display during manual creation of an order | 
| 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 |