How can I enter a batch of sales invoices as part of my opening balances without importing them?

Hello Lisa-direction12, If you do not want to import invoices as opening balances you can either on setting up the customer infomration>payment and billing and enter in opening balance or you can if you have multiple do a journal entry each customer would be a new line, so for example line, 1 in account select debtors and customer name Smith line 2  in account select debtors and customer name Yates and in the amount enter it on the debit side and so on and then when you entered all of the customers the final line you would in account use the opening balance equity account, sometimes called retained profit balance forward and the amount should total all of the customers in the credit side. See the example attached which will probably make more sense. Any questions let us know.