Of course, you can directly sell services and products from the checkout as well.
Note! It is not allowed to pay a part of the cash transaction and use the Billing/Account Sales/Credit payment method for the remaining amount during the same cash transaction.
If a part of the transaction is intended to be paid by invoice, then the entire amount of the cash transaction should be handled using the Billing/Account Sales/Credit payment method. After that, an invoice can be generated from the cash transaction, which can then be paid at the checkout. Partial payments can be accepted for the invoice at the checkout, as instructed above.
If Account Sales/Credit is used, the "Move to Background" function can be employed, which allows the ongoing cash transaction to be moved to the background and brought back to processing when additional sales are added to the same cash transaction. In this case, manual journal entries are no longer necessary.
