Dear Experts,
We found similar problem as below -
http://scn.sap.com/thread/3927329
The system did not find a valid bill of material
Message no. V1113
Diagnosis
The system tried to find a bill of material for the material entered, taking into account material T01-00503H-CA7XX62, plant 8600, date 20.07.2016 and BOM usage SD01.
However, no bill of material was found.
Procedure
Check the data entered.
Also found the above error and could NOT explode Sales BOM when creating SO in VA01. However, didn't find any missing in the Configuration, Material Master and BOM, i.e.
1) Define Item Cate. (VOV7) - setup for High Level Item Cate. ZTAB (customized) -
Structure scope = A
Application = SD01
2) Assign Item Cate. (VOV4) as below -

For your ref., we had customized High Level Item Cate. ZTAB & Low Level Item Cate. ZTBB.
3) Material Master - "Sales: Sales Org. 2" view -
According to the above VOV4 assignment in point 2, set Item Cate. Group ZERA for High Level Item Cate. Material; set Item Cate. Group ZVEP for Low Level Item Cate. Materials.
4) BOM is still valid (until 31.12.9999) as below -

Expected result should be -
Item 10: T01-00503H-CA7XX62 - Item Cate. ZTAB
Item 20: 480-20431-000002 - Item Cate. ZTBB
Item 30: 480-20431-000003 - Item Cate. ZTBB
However, only the above Item 10 with the above Msg V1113 could be found.
Could you advise how to solve the above problem ?
Tks,
KH Fong