Customer Master

How to create the customer master?

The following are the T-codes for central creation of customer master.

        XD01    Create Customer (Centrally) 
        XD02    Change Customer (Centrally) 
        XD03    Display Customer (Centrally) 
        XD04    Customer Changes (Centrally) 
        XD05    Block customer (centrally) 
        XD06    Mark customer for deletion (centr.) 
        XD07    Change Customer Account Group 
        XD99    Customer master mass maintenance 
        XDN1    Maintain Number Ranges (Customer)

You need to identify various parameters within each Account group based on which the reco account is identified within the customer master.

Customer master is basically divided into 3 tabs. 
- General - General master details, Juristiction codes, Region, Transportation zone, export data,  etc. 
- Company data - payment terms, account management, reco account, insurance etc. 
- Sales data -  Sales product attributes, sales office, sales group, customer pricing procedure, Cust. Statistical grp,  
   - Shipping data  
   - Billing data 
   - Partner functions.

You can create a customer based on 3 views: 
1. For Account purpose 
FD01/FD02/FD03 etc 
2. Sales purpose 
XD01/XD02/XD03 etc. 
3. Centrally  
VD01/VD02/VD03 etc.

What is the Function of item category and item category group? 
Item Category determines the processing of any Item/material that we enter in a sales order and in this way it also effects the procesing of any sales doc in which it is used.

Item Category Group is one of the component which along with the Sales Doc Type, The Item Usage and Higher Level Item Category decide about the Item Category in a sales doc.