Solution : https://service.sap.com/sap/support/notes/1392425 (SAP Service marketplace login required)
Key words :
enhancements -> business add ins -> implementations, correction instruction number 812407 directly, higher-level wbs elements, subordinate wbs elements, plan primary costs, unwanted side effects, longer automatically summarized, repository information system, plan values entered, source code consists
Related Notes :
1620344 | Exit: CJ42 only as init transac for detailed planning of rev |
1235375 | PS reporting: Plan for higher-level WBS elements too low |