> For the complete documentation index, see [llms.txt](https://docs.simpleaccounts.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.simpleaccounts.io/product-guides/master.md).

# Master

Master data is the core data that forms the basis of every transaction you do. Every entry made into the master reflects on your invoices, transactions and reports.