> For the complete documentation index, see [llms.txt](https://howto.sellercraft.co/how-to-sellercraft/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://howto.sellercraft.co/how-to-sellercraft/oms/get-started/shop-management.md).

# Shop Management

## Preparing the Shop for Sellercraft

### Ensuring there are no missing or duplicate seller SKU

Sellercraft uses the seller SKU on Lazada and Shopee:

* If Sellercraft encounters a product with ***blank seller SKU***, Sellercraft will automatically fill in a <mark style="color:red;">dummy Seller SKU</mark> number.
* If Sellercraft encounters 2 products with the ***same seller SKU*** within the same store, it will skip downloading one of the products.
* If Sellercraft encounters ***different seller SKU for the same product***, it will treat these listings as two different products. This will lead to <mark style="color:red;">wrong stock management and duplicate work in updating product</mark>.

Example : Same Product with different Seller SKU

<figure><img src="https://3200660590-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FY00avLzsxCKjiygAWqkf%2Fuploads%2FUZiTRYNsyD7435F9dbqs%2FScreenshot%202023-02-08%20at%2011.53.05%20AM.png?alt=media&amp;token=bfca367f-dc99-4a17-ab13-8dae6211b90f" alt=""><figcaption><p>SellerSKU</p></figcaption></figure>

**Identifying duplicate and missing SKU:**

An excel template is provided [HERE](https://drive.google.com/file/d/1RfpEAijTHbuC3JTW_9c-1Rq8e5Ahy7rt/view?usp=sharinghttps://drive.google.com/file/d/1RfpEAijTHbuC3JTW_9c-1Rq8e5Ahy7rt/view?usp=sharing) to help first time Sellercraft user to audit their Lazada and Shopee store to detect duplicate and missing SKUs:

* The excel template simply requires the user to export their Lazada and Shopee data and paste into the excel  and read the data from the excel and make the necessary changes to Lazada/Shopee store.

After prepare the shop, user can [connect the shop with Sellercraft](/how-to-sellercraft/oms/get-started/shop-management/connect-new-shop.md).<br>