This can't be generalized, it depends on whether the source of what you sell is clear. If it is a purchase and the quantity is clear, it is better to consider both inventory and sales revenue. Otherwise, how do you explain the difference between purchase volume and sales volume?

Second, if you are selling self-produced goods or services with an unclear number, you should continue to distinguish between situations. The cash payment has been deposited in the bank. What is the source of the money filled in the payment slip? If it is clearly stated that it is the payment for goods, the sales revenue must be recorded. If you don't write it, try to hang it up, put it in other accounts payable, and pour it out later. In this case, don't deposit the cash into the company account in the future, just deposit it directly into the debtor's personal account. I have contacted many manufacturers, and they all do this. If they don't provide the invoice, the money will go directly to the person in charge's personal account.