> For the complete documentation index, see [llms.txt](https://support.datech.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.datech.ai/shopsync/product-sync/edit/faqs.md).

# FAQs

<details>

<summary><strong>1. Why do I need to provide weight and dimensions for each product?</strong></summary>

TikTok Shop requires each product to include shipping information (weight and dimensions) for approval, while Shopify does not have this mandatory requirement. This can lead to situations where some products lack weight and dimension information, preventing successful synchronization. To avoid synchronization problems, you need to add weight and dimension information for each product.

</details>

<details>

<summary><strong>2.</strong> <strong>How to batch fill the delivery information for products?</strong></summary>

There are 2 ways to bulk update the delivery information for products:

* The first is to navigate to **Settings > Preferences**, where you can fill in uniform weight and dimension information for all products under *Default Shipping Information*.
* The second method is to use [Category Templates](https://support.datech.ai/shopsync/categories/category-template) to provide consistent weight and dimension information for products within the same category. Click here to see [How to Bulk Updating Product Information](https://support.datech.ai/shopsync/product-sync/edit/bulk-updating-product-info).

</details>

<details>

<summary><strong>3. Can I update the weight and dimensions of each of my products in bulk, since they are all different?</strong></summary>

If your products have different weights and dimensions, you will need to navigate to the **Products** page and fill in the corresponding weight and dimension for each product.

</details>

<details>

<summary><strong>4. How to bulk update the product brand?</strong></summary>

You can use [Category Templates](https://support.datech.ai/shopsync/categories/category-template) to bulk update the produt brand for products within the same category. Click here to see [How to Bulk Updating Product Information](https://support.datech.ai/shopsync/product-sync/edit/bulk-updating-product-info).

</details>

<details>

<summary><strong>5. Do I need to upload Certificate of Conformity when syncing products to TikTok Shop?</strong></summary>

It depends on the product category you are uploading. TikTok Shop does not require product certificates to be uploaded for all product categories, but categories such as beauty and personal care, electronics, packaged food and beverages require product certificates. For example, you need to upload Food Labelling for beverages. Please check the [TikTok Shop Product Listing Policy](https://seller-us.tiktok.com/university/essay?knowledge_id=3196690250417921\&role=1\&course_type=1\&from=search\&identity=1) for details.

</details>

#### Need Help?

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