Pls how can I record cash sales
As regular sale invoices > create >new receipt > chose account, ( for cash you need to setup cash account then will show up)
Contrary to what @Moha_sallah wrote, a sales invoice is not necessary. Although you can use one if you want to track the history of a customer, it is an extra step. For general guidance about cash sales, see https://www.manager.io/guides/7321.