Sometimes a bidder will want to split a winning bid they have placed with one or more other bidders. Usually this occurs at checkout.
You can split a bid from either the View Transactions dialog on the checkout page, or the Activity tab of the bidder or items details page, but only when Advanced Mode is enabled.
Splitting a bid from Checkout
Click on the View Transactions button when the bidder has been added to the checkout page.
Next to each winning bid in the transaction dialog will be a split icon. Click on this to split that bid between multiple bidders:
Splitting a bid from an Activity tab
You can split a bid from the Activity tab of the Item Details page for the item.
The split bid page will show the current winning bid for the item and let you select the bidders to split it among.
By default the page will split the bid amount evenly, but you can disable this using the Auto-calculate amount checkbox on the left and manually enter the amounts.
After selecting the bidders to split the item between click on Split Bid
The page will show the result of the split operation and you can then click on Checkout to return to the checkout you had in progress: