Turn on combined shipping in your eBay account settings if available
Set up shipping rules for multiple-item orders in your seller preferences
Use flat shipping rates for items that can be shipped together
Offer additional-item discounts in your listings
Create shipping profiles with combined shipping options
Ask buyers to request an updated invoice before paying
Send a combined invoice with the total shipping cost
Weigh and measure all items together before printing the label
Pack items in one box when safe and practical
Adjust shipping charges manually if the combined package costs less
Communicate with the buyer about combined shipping before checkout
State your combined shipping policy clearly in each listing
Exclude items that cannot be safely combined from the policy
Use calculated shipping only if you can accurately recalculate the total
Refund excess shipping charges after purchase if needed
Check eBay category and seller policy restrictions before combining shipping