Solution : https://service.sap.com/sap/support/notes/1402298 (SAP Service marketplace login required)
Key words :
launch transaction se18 choose 'enhancement spot', change mrpa global customizing flag', software component scm scm, affected ddic/workbench objects, function module /sapapo/mrpa_cust_flag_change, newly created badi definition, customizing table /sapapo/mrpacust01, note requires manual activity, tpye '/sapapo/enh_mrparea' click, spot definition' tab
Related Notes :
594318 | APO 4.0: Purchase order handling release with MRP areas |