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

# What is a data sample?

A data sample is a table of records with personal details of potentional clients. For some of our offers we reqiere data samples with [Jornaya ID or Trusted Form Script](https://help.marketcall.net/en/article/what-is-jornaya-lead-id-or-trusted-form-id-1xdpeyu/?1583241980114) in order to enshure that a lead has actually left a request on your ad platform.