To set the shopping cart sharing mode:
- Go to Commerce > Websites > Website List.
- Click Edit next to the website you want to modify.
- Go to the Shopping tab.
- In the Shopping Basics section, select one of the following options from the Shopping Cart Sharing Mode list:
- Single cart shared by all customer contacts (default)
- Individual carts for each customer contact
- Click Save.
If you switch from a single shared cart to individual carts for contacts, the existing shopping cart is retained and can still be accessed by anyone logging in using the main customer login details. Individual contacts receive new, empty carts when they log in.
If you switch from individual carts to a shared cart, contacts lose access to their individual carts. The individual carts are retained until they expire in about 30 days, but are not accessible unless you revert to individual carts.