SAP Business 1 Business Object Schema

[communitysap]

Hi

I am using a product by BPA call task center to update existing items in my B1 database.

I want to find a schema / "shape" of the xml for the OITM but I can not find anything

eg if my Item was call "Test" and I was changing the description I would expect to need to provide something like
<root>

<row>

<Item>Test</Item>

<Action>Update</Action>
<details>

<description>This is the change section</description
</details>

</row>

</root>

Can anyone here make a suggestion please

All I am getting is no matching item to update