Solution : https://service.sap.com/sap/support/notes/159653 (SAP Service marketplace login required)
Key words :
program termination 'abap/4 runtime error message_type_x' occurs, additional key words cj20, function group 'cobp', project planning board, transaction cj20, structure planning, transaction cj2b, service activity, message_type_x, 'form get_service_data'
Related Notes :
| 158759 | Too many DATA control blocks - SAPLCOBO |