You use product group codes to determine posting according to how you categorize your sales and purchases of items.
Open the Gen. Product Posting Groups window.
In the Code field, enter a code to identify the group.
In the Description field, enter a brief description of the group.
Repeat this procedure for each product group you want to set up.
General Posting Setup
Setting Up General Business Groups
Setting Up Default VAT Product Posting Groups
Assigning General Business and Product Group Codes to G/L Accounts
Assigning General Product Group Codes to Items and Resources
Setting Up Combinations of General Business and General Product Groups
Setting Up Item Charge Numbers for Purchase Documents