> For the complete documentation index, see [llms.txt](https://help.nobi.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.nobi.pro/nobi-pos/cash-book.md).

# Cash book

When performing a sales operation, collecting customer debt... the system will automatically generate a receipt in the cash book recorded for this cash flow.

And for payment transactions when importing goods, paying debts to suppliers... the system will also generate a corresponding payment slip to record this operation.

In business, receipts are created when there is an inflow of cash. Payslips are generated when there is a cash outflow.

Nobita will instructions you:

* [Create and manage payment vouchers](/nobi-pos/cash-book/payment-voucher.md).
* [Create and manage receipt ](/nobi-pos/cash-book/receipt.md)

Right now, let's explore with Nobita the creation and management of different types of cash books!