Solution : https://service.sap.com/sap/support/notes/562360 (SAP Service marketplace login required)
Key words :
maximum low-level code 999 reached solution 1, low-level codes increase depending, maximum low-level code 999, calculated low-level codes, large low-level codes, low-level codes, parameter updates = 'x', bom transfer terminates, attached program corrections, function module bapi_material_bom_group_create
Related Notes :
| 140573 | Low-level code 999 for joint production |
| 68792 | Collective note for low-level code / recursiveness |