Need to know the Flow of sales and Purchase?

Can Anybody tell me the general Navision Flow for

1.)Sales & receivables Modules

2.)Purchase & Payables Modules

Kindly requesting you to give me an idea reagdring this as am new to functional.

Upto my observation , is it possible to got through the PDF of Sales & receiveables and

Purchase & payables , so that i can basic knowledge of Funcional processs regarding the two modules?

Expecting guidelines Please.

You can contact your partner for the documents related to the functionality of NAV.

If you have customer source access then you can also download the documents.