The invoices module is the place where you can input your invoices and details about it. And to add an invoice pls click on ''Bookkeeping'' on the ''Main Menu''
The opening page will be the list of invoices that recorded before.
Click on the button a pop-up screen will appear after that, fill it with the required details and click on ''Save'' button so the invoice will be created on a ship
Later on, the first step should be adding a running cost category by clicking on button. Please be aware these categories should be created before on the ''Running Cost'' module otherwise, you can not see any category on the list. The next step should be adding all the details asked for, by clicking on the buttons next to each detail on the page.
The next step should be adding a vendor that is enough to click on button and choose from the existing list or add a new one.
Additionally you can also add credit invoice with the button