Go to My eBay and log in if required.

Click the “Marketing Tools” link in the left-hand navigation.

Click the “Edit” link to the right of Cross Promotions Defaults.

On the Default Cross-Promotions page, look over the list of rules. Click the "Edit" link for any rule you want to change, or click the "Create new rule" link to set up a new rule.

On the Create Rule page, use the available options to create the rule.

• For most sellers, you can create rules based on the eBay categories your items belong to.

• If you're an eBay Store seller, you can also make rules based on your Store categories and keywords in your item titles.

On the Verify Rule page, you'll see a sample of items that would be cross-promoted based on the rule. If you're satisfied with the results, click the Save Rule button. Otherwise, click the "Edit rule" link.

Go to My eBay and log in if required.

Click the “Marketing Tools” link in the left-hand navigation.

Click the “Settings” link under Item Promotion in the left-hand navigation.

Under Cross-Promotion Display Preferences, you'll see options for when buyers view items and when they bid on or win items. Choose the options you want and click the Save Settings button.