Clarification in item category determination based on Usage

Question

Hi
We are having one quotation document (ZXYZ) and the item category determination we maintained is as below
SALES  Doc +   ITEM.C . Group +  USAGE  +   H.L.ITEM   =    ITEM Category
ZXYZ  +   NORM   +     SENI  +  -
  =    AES
ZXYZ   +   NORM   +     SEIN  +  -
  =   AEN
(SENI = D.ITEM IS NOT BILLING RELEVANT)
(SEIN = D.ITEM IS BILLING RELEVANT)
We created many Service quotations , say some 1000 quotations till date . In some quotations system is taking AES as item category and in some cases system is taking AEN as item category . and in all the cases the Quotation document type is ZXYZ and the item category group maintained in the Material master is NORM only .
On what basis system is determining my item category in the quotation . If it is determining based on Usage then where we maintain the Usage (either SENI or SEIN)
Thanks in Advance & Regards

Answer 1

Hi,
Please find below the explaination for your query.
Item usage
The item usage indicator controls the system reaction when you process a sales document item in a certain context.
Use
This indicator can be used for determination of item categories, where you can use it to control which other item categories are to be found in a certain environment (text items and packing items, for example).
It can also control which items are to be billed in a service quotation or the corresponding sales order and which are only there for statistical reasons.
The item category usage can be defined using transaction 0VVW.
I hope this gives you sufficient information on the usage in item categories.