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# I have updated the BOM but Rack layout is not updating

If the **Automated Rack Layout is not updating in** XTEN-AV **after you update the BOM**, it usually happens because the **Rack unit of Product is not updated**.

**Kindly follow the steps below to update the Line Schematics:**

Navigate to the **BOM** page and select the product that is not visible in the **Rack Layout**. Then, click on the **Edit** button located below the product name.

![](https://storage.crisp.chat/users/helpdesk/website/-/e/3/c/d/e3cdae6433963000/image_1com62l.png)

The **Update Product Details** window will appear. Then click on the **Additional Info** section and enter the rack unit value in the **No. of Rack Units** field.

![](https://storage.crisp.chat/users/helpdesk/website/-/e/3/c/d/e3cdae6433963000/image_1cd46t5.png)

Scroll down, select the **Re-draw Device** option, and then click on **Add Product** to save the changes.

![](https://storage.crisp.chat/users/helpdesk/website/-/e/3/c/d/e3cdae6433963000/image_1utbch6.png)

Then open the **View Docs** page and hover over the **Automated Rack Layout** tile. Click on the **three-dot (⋮) menu**, and select the **Re-Generate** option to update the changes in the rack layout.

![](https://storage.crisp.chat/users/helpdesk/website/-/e/3/c/d/e3cdae6433963000/image_ul6du6.png)

A confirmation pop-up window will appear. Click on **OK** to proceed.

![](https://storage.crisp.chat/users/helpdesk/website/-/e/3/c/d/e3cdae6433963000/image_17w9ij2.png)
It will take some time to regenerate. Once the process is complete, the updated Automated Rack Layout will open in the **X-DRAW Editor**.

![](https://storage.crisp.chat/users/helpdesk/website/-/e/3/c/d/e3cdae6433963000/image_17598zy.png)