Solution : https://service.sap.com/sap/support/notes/1394067 (SAP Service marketplace login required)
Key words :
solution sap netweaver bi 7, sap netweaver bi 7, sap nw bi7, 01 bi abap sp06, variables lost reason, 02 bi abap sp02, sapbinews nw bi 7, support package mentioned, 00 import support package 23, import support package 06
Related Notes :
1240729 | Changable variable loses value in 3.x Analyzer & 7.x backend |