Custom price provider and bulk prices

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Imar Spaanjaars

Posted on 11/06/2026 21:21:47

Hi there,

I am building an integration against a custom end point. I've configured LI and can see it makes successful requests; the response then contains multiple prices for different quantities. When I output the prices from product.Prices I can see all the quantity breaks. However, when I add a product to the cart with a specific quantity, the price is not respected. Here's what LI sends:

<GetEcomData ExternalUserId="aaa" AccessUserCustomerNumber="aaa" VatCountryCode="GB" VatPostingGroup="">
  <tables>
    <Products type="filter">
      <Product>
        <ProductId>10089</ProductId>
        <ProductVariantId></ProductVariantId>
        <ProductNumber>10089</ProductNumber>
        <ProductUnitId></ProductUnitId>
        <ProductIdentifier>10089..ENU</ProductIdentifier>
        <CurrencyCode></CurrencyCode>
        <Quantity>7</Quantity>
      </Product>
    </Products>
  </tables>
</GetEcomData>

The response then looks as follows:

<tables>
  <table tableName="EcomProducts">
    <item table="EcomProducts">
      <column columnName="ProductId"><![CDATA[10089]]></column>
      <column columnName="ProductVariantId"><![CDATA[]]></column>
      <column columnName="ProductIdentifier"><![CDATA[10089..ENU]]></column>
      <column columnName="ProductNumber"><![CDATA[10089]]></column>
      <column columnName="ProductName"><![CDATA[ATHEN Skuffemodul]]></column>
      <column columnName="ProductPrice"><![CDATA[1800]]></column>
      <column columnName="ProductStock"><![CDATA[254]]></column>
      <column columnName="ProductCurrencyCode"><![CDATA[EUR]]></column>
      <column columnName="ProductDefaultUnitId"><![CDATA[]]></column>
    </item>
  </table>
  <table tableName="EcomPrices">
    <item table="EcomPrices">
      <column columnName="PriceProductId"><![CDATA[10089]]></column>
      <column columnName="PriceUserCustomerNumber"><![CDATA[]]></column>
      <column columnName="PriceProductUnitId"><![CDATA[]]></column>
      <column columnName="PriceQuantity"><![CDATA[6]]></column>
      <column columnName="PriceAmount"><![CDATA[1200]]></column>
      <column columnName="ProductIdentifier"><![CDATA[10089..ENU]]></column>
      <column columnName="ProductNumber"><![CDATA[10089]]></column>
    </item>
    <item table="EcomPrices">
      <column columnName="PriceProductId"><![CDATA[10089]]></column>
      <column columnName="PriceUserCustomerNumber"><![CDATA[]]></column>
      <column columnName="PriceProductUnitId"><![CDATA[]]></column>
      <column columnName="PriceQuantity"><![CDATA[10]]></column>
      <column columnName="PriceAmount"><![CDATA[1100]]></column>
      <column columnName="ProductIdentifier"><![CDATA[10089..ENU]]></column>
      <column columnName="ProductNumber"><![CDATA[10089]]></column>
    </item>
  </table>
</tables>

When I add 6 to the cart, I'd expect the total price to be 7200, but yet I get 10800 (6 x 1800 of the base price).

Should I maybe update the price in EcomProducts to match the quantity specified in the request? Or do I need to do something else to make it work?

Thanks!

Imar

Replies

Dmitriy Benyuk

Posted on 11/06/2026 21:54:12

Hi Imar,
could you also implement the Dynamicweb.Ecommerce.Prices.IPriceInfoProvider interface in your custom price provider?
And then have implemented the methods that should return the correct price based on quantity:
public PriceInfo FindPriceInfo(PriceContext context, PriceProductSelection selection)
IEnumerable<KeyValuePair<PriceQuantityInfo, PriceInfo>> IPriceInfoProvider.FindQuantityPriceInfos(PriceContext context, Product product)

If that will not help then there is ability to have a custom cart calculation provider by inheriting from: Dynamicweb.Ecommerce.Cart.CartCalculationProvider.

BR, Dmitrij

Imar Spaanjaars

Posted on 12/06/2026 08:53:59

Hi Dmitriy,

>> could you also implement the Dynamicweb.Ecommerce.Prices.IPriceInfoProvider interface in your custom price provider?

I could, but should I? Currently, I don't have any custom provider at all. I am trying to make it work with the standard LI package and just responses from a custom ERP. I.e:

DynamicWeb LI => Connector Service => Custom connector => ERP

My goal is to have the custom connector connect to the ERP, fetch data and then return XML in a format that LI standard supports. So, I am trying to mimic the behavior of the various ERP code units.

>> If that will not help then there is ability to have a custom cart calculation provider by inheriting from: Dynamicweb.Ecommerce.Cart.CartCalculationProvider.
Same thing there: do I have to implement that or could I rely on the standard functionality?

Imar

Imar Spaanjaars

Posted on 12/06/2026 08:55:31

Guess I caused the confusion myself with this subject:

>> Custom price provider and bulk prices

That should have read: Custom connector and bulk prices

Imar

Dmitriy Benyuk

Posted on 12/06/2026 11:10:57

This post has been marked as an answer

Hi Imar,
in that case there are two possible approaches. In our default ERP implementation for the F&O/NAV/BC it returns the correct price based on the request <Quantity> value, so it takes its value into account and calculates the lowest possible price for that and sends it back in the EcomProducts/ProductPrice tag, so in your case the response for the <ProductPrice> needs to be 1200, not 1800.

The other way could be for the ERP implementation don't send any value in the <ProductPrice> tag, so leave it empty, then include the default price for Quantity=1 in the EcomPrices list, then the Live Integration PriceProvider should pickup the correct price based on the orderline Quantity.
I would recommend to follow the first approach as it is working like that today.
BR, Dmitrij

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Custom price provider and bulk prices

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