> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.datachamp.io/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).

# Which Mappings Are Most Frequently Used In DataChamp, and What Do They Do?

#### ${color}[#1a63ba](Most Asked Mappings Explained:)

This article explains the mappings that users ask about most often in DataChamp.

1. If the current quantity is zero, display a zero instead of leaving the field empty.
![](https://storage.crisp.chat/users/helpdesk/website/-/d/0/0/f/d00f55635133d800/show-0_1t2hkbh.png)

2. If “Shipping Address 2” is available, you can use mappings to combine both fields and create a single complete address by merging “Shipping Address 1” and “Shipping Address 2:

![](https://storage.crisp.chat/users/helpdesk/website/-/d/0/0/f/d00f55635133d800/address-line_2oq8kv.png)
| Please refer to the [Mappings article](/en/article/mappings-fhp4u7/) for detailed explanations of mappings.