I'm quite new to Magento and now I've to develop an external service (C# web service), which needs to add a product to a customers cart (using the SOAPv2 call shoppingCartProductAdd). The only information I got is the encrypted customer session id and the quote id (if the customer has already a cart).


If I've the qoute id (cart id), everything works just fine. Without the qoute id the product can't be added of course.


Is it possible to create a cart for a session? Yes I've already seen the method shoppingCartCreate, but this will only create a cart and doesn't connect it with the customer session. Is there a method for connecting the a cart with a session?

  • I have created cart using "cart.create" and then assinged to customer using "cart_customer.set". but this will only create a cart on "LocalHost" and doesn't connect it with the customer session on "Live Website". Is there something that am i missing for cart sync?
    – pallavi
    Jan 19, 2016 at 16:18

1 Answer 1


The Magento SOAP API is a web-service and is meant for data exchange with external systems such as ERP, accounting, etc. You can create orders via SOAP-API in your shop which you will see afterwards in the customers account as well as in the shop admin-interface.

You are trying to fill a customers shopping cart with products from the SOAP API which is not a standard function.

I've never set it up like this, but what you need to do to achieve your goal is, to create a connection between your visitors/customers session in the browser and the shopping cart.

Depending on your intended usage you'll need to access the visitors', customers' and checkout session:

Get the visitor session:

$session = Mage::getSingleton('core/session');

Get the customer session:

$session = Mage::getSingleton('customer/session');

Get the checkout session:

$session = Mage::getSingleton('checkout/session');

Set customers session to checkout session:


Whatever you do: Be careful with setting, storing,... the session-id via URL and cookies. This can be a potentical security issue.

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