Hi Florian,
The java basket is stored in the java stack which allows for persistent shopping on the web (i.e. customer web session drops out, they come back to the web shop and it shows them their previous basket). Very handy for B2C scenario as normal consumers usually have poor internet connections.
The other is the ABAP basket meaning you are just creating the basket online into the CRM system just as you would using the SAPGUI before saving.
Cheers
Andrew
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