Solution : https://service.sap.com/sap/support/notes/781538 (SAP Service marketplace login required)
Key words : 
apo mistakenly refer, symptom purchase requisitions, purchase orders, vc configuration, planning process, consume requirements, cdp characteristics, solution implement, release restrictions, sap notes 444569
Related Notes : 
       
| 444569 | Release restrictions for APO 3.10 Support Release 1 | 
| 427957 | Release restrictions for APO 3.0A Support Release 3 |