BOM Item Category (urgent)

Question

HI SAP Gurus,
We have an issue in BOM.
At first we cannot explode our BOM. The main item is in Item Category of NORM. So what we did is to change the Item Category group to ERLA. As I understand, If we use ERLA, the price will be in the Main Item and the component has no price.
1. Is this set up in CS01 is possible/correct?
Main Item 123
components as:
Item 10 material 123
Item 20 material 456
Item 30 material 789.
2. Our configuration in Customizing: Assignmet of Item Category as:
Sales Doc type     Item Cate Grp                         High Level                          Default Item Cat
OR           ERLA                    TAP
OR          ERLA          TAP          TAN
With this config, I tried/tested sales order creation and the result becomes:
Item 10     material 123     TAP
Item 20     material 123     TAN
Item 30     material 456     TAQ
Item 40     material 789     TAQ
Item 10 and 20 has a price which should not be since the only acceptable item to have a price is on Item 10 (main item) only. Also, Items 10, 30 and 40 keeps on asking for weight but item 20 already has. I checked in material master, and the weights were maintained correctly.
3. I also tried to change the config to:
Sales Doc type     Item Cate Grp                          High Level                          Default Item Cat
OR           ERLA                    TAP
OR          ER          TAP          TAQ
The Item 20 of sales order has now Item Cat of TAQ. However, it still asks for weight for 10, 30 and 40. But is now asking for price in Item 20 (w/c for me is correct).
Now the problem is in Delivery. The Pick Quantity column for Item 10 is disabled.
I really need help on this one. Immediate response is highly appreciated. Points will be rewarded.
Thank you so much for the help and taking time to read my questions/issues.

Answer 1

HI Erza29,
BOM can be done in 2 ways
ERLA -(Above structure material)
--IItem category group Header item is TAQ
--Item category group Sub item is TAE
LUMF -(Below Structure Material)
--Item category group Header item is TAP
--Item category group Sub item is TAN
--Do the assignment of Item Category in VOV4 as follow
Sales Doc typeItem Category Group Default Item Category
OR+ ERLA+ TAQ
Sales Doc typeItem Category Group High Level     + Default Item Category
ORERLATAQ+TAE
--Go to MM02 in sales organization2 tab you have to change the item category group as ERLA & save it.
--Go to T.Code CS01
Main Item 123
components as:
Item 10 material --123
Item 20 material --456
Item 30 material 789.
--Go to T.Code VK11 & enter the condition type
--Here the sub item prices should be equal to the main item price.
Main Item 123---1000-Price
Item 10 material 123300 Price
Item 20 material 456400 Price
Item 30 material 789--300 Price
--Raise the sale order in VA01 & enter the main item material & qty
--Click on  item overview here you can see the sub items with the main item & you can see the  price & weight only for the main item not for the sub items.
--Item category will be TAQ for main item & Sub item is TAE
--In ERLA concept we do pricing & delivery only for the header item only.
--IN LUMF it is Vice Versa.
Let me know if your problem is solved
Regards
Pradeep