Solution : https://service.sap.com/sap/support/notes/880206 (SAP Service marketplace login required)
Key words :
saving dependent object r3tr/tabu/ <table, sapbwnews bw support package 15 netweaver'04 stack 15, object r3tr tabu <table, 10 content import support package 23, 0b import support package 29, 50 import support package 15, 1 content support package 23, provide advance information, 0b support package 29, rspc <process chain
Related Notes :
| 761043 | Process variants of the ABAP type cannot be saved |