Stock Categories offers an alternative classification of Stock Items. Like stock Groups, classification is done based on similarity in behaviour. The advantage of Categorizing items is that you can classify the stock items (based on functionality) together – across different stock groups which enables you to obtain reports on alternatives or substitutes for a stock item. It is not Mandatory. For enabling Stock Category option in the Inventory Info menu, press F11 > Inventory Features > Set Yes for Maintain stock categories .
Trial balance is a list of ledger accounts balances, showing debit balances and credit balances, separately on a certain date. Trial balance is only a statement not an account. Every transaction has equal debit and credit aspects so that the trial balance possesses equal debit and credit balances. Preparing trial balances monthly will help you to fix errors as soon as it happens.
By which option Purchase or Sales register can be viewed