Solution : https://service.sap.com/sap/support/notes/620663 (SAP Service marketplace login required)
Key words :
low-level code, attached advance correction, call bapi_material_bom_group_create, set incorrectly, solution implement, note 616726, prerequisite
Related Notes :
616726 | BAPI_MATERIAL_BOM_GROUP_CREATE: Low-level code incorrect |