> For the complete documentation index, see [llms.txt](https://docs.solutioo.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.solutioo.de/magento-2-api-connector/magento2_en_us/configuration/set-up-catalog-and-inventory.md).

# Set Up Catalog and Inventory

These settings define the default behavior for products and inventory.

### Catalog Fields

* Allow Item Upload
* Upload Item Image
* Upload Simple Variants
* Use Model as Configurable
* Upload Bundle Items
* Upload Product Category
* Update Product URL
* Set Item Category According to Magento
* Default Category / Attribute Set / Visibility

### Variant versus Model

**Use Model as Configurable** determines whether a model is used as a Magento parent product. Variant axes are maintained centrally; the older Color/Size fields are deprecated.

### Categories

**Upload Product Category** sends product-category assignments. The default category is the fallback.

### MSI Inventory

* Inventory Sync Mode = Magento MSI
* Upload Inventory
* Upload Variant Inventory
* Allow Update Magento Inventory
* MSI Source → BC Location

{% hint style="warning" %}
Legacy Stock Item is not reliable in this version. Use MSI after a successful mapping test.
{% endhint %}

### Negative Quantities

The **Upload Negative Quantity** toggle does not affect the current MSI upload. Handle negative quantities organizationally.


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