> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.wikiguide.link/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How to Set Product Size and Weight for TikTok Shop


## Overview

TikTok Shop **requires product size and weight** for certain product categories
To ensure **successful product synchronization** from **TikTok Shop Connector by SPL** to TikTok Shop, Shopify merchants **must specify the size and weight** for the products they sync.

### Manage size and weight information

## Product Syncing

### Manual Edit

If you are manually syncing your Shopify products:

1. Go to **Product > Shopify products  > edit ** in the TikTok Shop Connector by SPL admin.

![](https://storage.crisp.chat/users/helpdesk/website/-/a/9/5/5/a9552c769f21a000/image_nzau9g.png)
2. Click **Edit** next to any product to set the following details:
* **Weight**
* **Length**
* **Width**
* **Height**

![](https://storage.crisp.chat/users/helpdesk/website/-/a/9/5/5/a9552c769f21a000/image_1ud7w12.png)
## Set Default Product Dimensions (For Products Without Size/Weight)

If certain Shopify products **don’t have height and width specified**, TikTok Shop Connector by SPL will use **default product dimensions**.

To set default dimensions:

1. Go to **Settings** in the TikTok Shop Connector by SPL.
2. Under **General Settings**, scroll down to **Default Product Dimensions**.
3. Enter the default **Height**, **Width**, and **Length** values.

![](https://storage.crisp.chat/users/helpdesk/website/-/a/9/5/5/a9552c769f21a000/image_mluaj3.png)
|| These defaults will be applied to all products missing dimension data during sync.
## Why Is Size and Weight Required?

TikTok Shop uses **size and weight** (length, width, height) to calculate **shipping costs**.
Providing **accurate product dimensions** ensures:
* Correct shipping cost calculation
* Smooth product listing and order processing