# Place orders with cross-sell campaigns

Use the **CrossSell** object below to recommend additional products to customers via the SOAP API 6.0.

Cross-selling allows you to recommend additional products to customers and increase the average order value. The 2Checkout Public API supports classic cross-sell campaigns which means you can recommend more products from your own product catalog to your shoppers.

## Request parameters

<table><thead><tr><th width="136.13330078125">Parameter</th><th>Type / Description</th></tr></thead><tbody><tr><td><code>ParentCode</code></td><td><strong>Required (string)</strong><br>Product code of the product to be recommended to the shopper.</td></tr><tr><td><code>CampaignCode</code></td><td><strong>Required (string)</strong><br>The upsell campaign code.</td></tr></tbody></table>

### Request sample

```php
{
  "Currency": "USD",
  "Language": "EN",
  "Country": "US",
  "CustomerIP": "10.10.10.10",
  "Source": "sourceAPI.net",
  "CustomerReference": 421820775,
  "Items": [\

    {\
      "Code": "15",\
      "Quantity": 1\
    },\
    {\
      "Code": "34924C876E",\
      "Quantity": 1,\
      "CrossSell":{\
        "ParentCode" : "15",\
        "CampaignCode" : "2Xrl83KSkemCv3G3dL%2B9eA%3D%3D"\
      }\
    }\
  ],

   "BillingDetails":{

      "FirstName":"Customer First Name",
      "LastName":"Customer Last Name",
      "CountryCode":"US",
      "State":"California",
      "City":"San Francisco",
      "Address1":"Example Street",
      "Zip":"90210",
      "Email":"example@email.com"

   },

  "PaymentDetails": {
    "Type": "CC",
    "Currency": "USD",
    "CustomerIP": "10.10.10.10",
    "PaymentMethod": {

      "Vendor3DSReturnURL": "https:\/\/example.com",
      "Vendor3DSCancelURL": "https:\/\/example.com",
      "CardNumber": "4111111111111111",
      "CardType": "VISA",
      "ExpirationYear": "2020",
      "ExpirationMonth": "12",
      "CCID": "123",
    }
  }
}
```

## Response

Using the same structure, the **getContents** method will take into account the discount associated with the cross-sell campaign and display the appropriate prices and taxes.

```php
{
    "Country": "DE",
    "Currency": "EUR",
    "Items": [\
        {\
            "Code": "NIQRPI0GTU",\
            "Quantity": 1\
        },\

        {\
            "Code": "0XICS3OVDK",\
            "Quantity": 1,\
\
"CrossSell":{\
        "ParentCode" : " NIQRPI0GTU ",\
        "CampaignCode" : "2Xrl83KSkemCv3G3dL%2B9eA%3D%3D"\
      }\
\
        }\
    ],

    "BillingDetails": {
        "FirstName": "Customer First Name",
        "LastName": "Customer Last Name",
        "CountryCode": "DE",
        "City": "Bucharest",
        "Address1": "Example Street",
        "Zip": "73331",
        "Email": "example@email.com"
    }
}
```


---

# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.2checkout.com/soap-api-reference/soap-api-6.0/api-requests/cross-sell/place-orders-with-cross-sell-campaigns.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.