Solution : https://service.sap.com/sap/support/notes/506648 (SAP Service marketplace login required)
Key words :
transaction bph_dnl 'business partner group hierarchy, abap runtime error occurs, group hierarchy reason, source code corrections, program cl_bupa_hierarchy_current_mem=cp, customer hierarchy, program error, initial download', choose 'execute', exception condition
Related Notes :
| 522815 | Timeout when executing/saving BPH_DNL |
| 503202 | R/3 customer hierarchy not visible at the CRM mobile client |