Update Stock on Variable product won’t work correctly

Hi all,

First of all, great plugin !!!
I’d imported a lot of stuff already. But now i have a challenge regarding hourly/daily updating/syncing stock levels for variation products.

Some background info:
I’m importing products from an XML feed. Based on 1 or multiple variations the all import is creating simple or variation products.

the main xml feed looks like this:

<product>
    <id>1234</id>
    <artnr><strong><em>10203040</em></strong></artnr>
    <title>Title of product</title>
    <description>description of product</description>
    <brand>
      <id>63</id>
      <title>brand name</title>
    </brand>
    <date>15-03-2010</date>
    <modifydate>05-08-2019</modifydate>
    <variants>
      <variant>
        <id>1235</id>
        <type>S</type>
        <subartnr><strong><em>10203040</em></strong></subartnr>
        <ean>1212121212121</ean>
        <stock>Y</stock>
        <stockestimate>3</stockestimate>
        <title>Medium</title>
      </variant>
      <variant>
        <id>1236</id>
        <type>S</type>
        <subartnr>10203041</subartnr>
        <ean>1212121212122</ean>
        <stock>Y</stock>
        <stockestimate>50</stockestimate>
        <title>Large</title>
      </variant>
	  ...
	  ...

As you can see, the primairy product is the same as the first variation (for simple and variation products)

An stock xml feed looks like this:

<product>
<productid>1234</productid>
<variantid>1235</variantid>
<productnr>3002137010</productnr>
<ean>716770055729</ean>
<stock>Y</stock>
<qty>99</qty>
</product>
<product>
<productid>1234</productid>
<variantid>1236</variantid>
<productnr>3002137030</productnr>
<ean>1212121212121</ean>
<stock>Y</stock>
<qty>27</qty>
</product>
<product>
<productid>1234</productid>
<variantid>6443</variantid>
<productnr>3002137020</productnr>
<ean>1212121212122</ean>
<stock>J</stock>
<qty>9</qty>
</product>

As you can see:

how can i correctly sync the stock. Do i need to keep the import template with variations, and which option to choose (1/2/3/4/5) – http://www.wpallimport.com/documentation/woocommerce/variable-products/ with what kind of unique field…

Also in the import settings. what should be the record matching?
Because the stock feed has got a different format than the main feed. i’d tried a lot of options, but i can;t figure it out

Thanks for all your help

I hope i cleared it out for you all

Kevin