From the Catalog Detail page which lists your ECP authorized catalog, type C or click the Add Categories from ECP link.
On the ECP Category Management page, click the down arrow in the Find a Mapped Product box to display the ECP categories.
Click 
(plus button) to display additional category levels.
When the correct category level appears, click the Map New Product link.
Click the SKU box and enter part or all of the item number. The system displays a drop down list of the item that most closely matches the item you specified. (Items shown in bold text have already been mapped.)
Select the item and click 
. The text XXX Has Been Added to Category YYY appears, indicating that the specified item was added to the category you selected.
You can continue to add as many items to the category as needed. When finished, click 
.
The items you added appear above the Map New Product link. To remove an item, click the check box beside the item. Then, click the Click to Remove Checked Items link.
To find an item you have previously mapped, enter the item number in the Find a Mapped Product box. The system displays a drop down list of the item that most closely matches the item you specified. Then, select the correct item and click Find. The information displays for the item you selected.