Solution : https://service.sap.com/sap/support/notes/736288 (SAP Service marketplace login required)
Key words :
function module ibapi_h_exec_bu2_intern, import parameter iv_no_scheduling, function module bapi_alm_order_maintain, notice errors, system schedules, method no_scheduling, bapi bapi_alm_order_get_detail, workflow tasks, system issues, runtime error
Related Notes :
| 735696 | Notes for Downgrade Kit ALMBAPI: Relevance |
| 666790 | BAPI_ALM_ORDER_GET_DETAIL in events: MESSAGE_TYPE_X |
| 593891 | BAPI_ALM_ORDER_MAINTAIN: Scheduling is not expected |