item category and account category
how important is item category and account category in MM while creating a PO?
Item category- Represents what kind of procurement you are doing
The item category determines the field selection and whether any additional data screens are shown.
In addition, it determines whether a goods receipt or invoice receipt is to follow.
The following list contains the item categories defined in the standard SAP R/3 System:
U Stock transfer
Account assignment category - Represents the account on which you want to do the procurement
B MTS prod./sales ord.
C Sales order
E Ind. cust. w. KD-CO
G MTS prod./project
K Cost center
M Ind. cust. w/o KD-CO
Q Proj. make-to-order
S S Ac Assigmnts
T All new aux.acc.***.
X All aux.acct.assgts.
If you leave both the feild blank that means you are doing standard procurement ie material account and standard feild selection