> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://support.on2air.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 are "Projects"?

Projects are a collection of Airtable bases. You define the backup schedule at the project level. 

So for example: you could have 1 project with 3 bases that backs up every day, and another project with 2 other bases that backs up every month.

[See how to back up multiple Airtable bases](https://on2air.com/content/on2air-help-center/app-documentation/backups/how-to-back-up-multiple-airtable-bases-with-a-backups-project)