Solution : https://service.sap.com/sap/support/notes/557715 (SAP Service marketplace login required)
Key words :
create function module crm_mkttg_tg_hcount_db, symptom business partner numbers, function group crm_mkttg_tg_h_db, business partner numbers, type iexceptionsparameter_errorthen implement, implement support package 13, business partners, support package 03, displayed numbers, obsolete numbers