Solution : https://service.sap.com/sap/support/notes/586811 (SAP Service marketplace login required)
Key words :
terms apo-fcs-extr solution bw2, 1c import support package 22, 0b import support package 30, 0b import support package 09, 1c support package 22, 0b support package 30, 0b support package 09, bw support packages, select 'assign infosource', apo datasource
Related Notes :
536247 | Assignment InfoObject <=> field when creating InfoSources |