Material To Be Added or Excluded To a Customer

How to setup material exclusion for customer during sales order creation?
If you want specific material to be added or excluded to a customer, you can do it in "Listing and Exclusion".
 
Here is a small note on listing and exclusion, it may be helpful.
Material listing and exclusion:
 
Material listing: Whatever the materials that are placed in the listing for a customer he can access to those materials only.
 
Maintaining records for material listing: 
 
Logistics
Sales and distribution
Master data
Products
Listing/Exclusion
VB01 Create
Specify the condition type for listing
Select the required key combination
Enter the required materials in listing and save it.
 
Material Exclusion: Whatever the materials that are placed in exclusion for a customer he cannot access those materials.
 
Maintaining records for material Exclusion:
 
Logistics
Sales and distribution
Master data
Products
Listing/Exclusion
VB01 Create
Specify the condition type for exclusion
Select the required key combination
Enter the required materials in exclusion and save it.
 
Maintaining condition technique for listing and exclusion:
 
SPRO
Sales and distribution
Basic functions
Listing/Exclusion
Maintain condition tables for listing/exclusion
Maintain access sequence for listing/exclusion
Maintain listing/exclusion types
Go to new entries and define condition types one each for listing, exclusion
 
Procedure for maintaining listing/exclusion
Define the procedure one each for listing and exclusion
 
Activate listing/exclusion by sales document type
Select the required sales document type and assign the procedure for listing and exclusion
 
Note:  
 1. Listing type  A001
 2. Exclusion type  B001
 3. Procedure for listing  A00001
 4. Procedure for exclusion B00001