1-Go to File->Settings->Type of operation and click on the “ADD NEW” button.
2-Types of operation: used to define if a transaction will be a sale, in which a payment from the client will be received and normally the inventory will decrease, or about a purchase, in which you will get a bill to pay for the product/service acquired, and normally the inventory will increase.
2.1-Fill the field with the description/name of this operation.
2.2-Check or uncheck if this operation will affect inventory and/or financial, if this will update the cost price (when used in vendor invoices), if this operation will be the default option for Vendor invoices or POS sales.
After defining this, choose the type of operation according to the examples below.
2.3-Choose IN if you are buying something (Vendor invoice)
2.4-Choose OUT if you are selling something (POS sale)
