Categorizing income without invoice?

I have a square POS and I just get deposits and with Wave Accounting I would simply categorize it as sales income. InvoiceNinja is asking me to link it with a payment or invoice. Is there a way to mark it as income without a invoice?

Hi,

Invoice Ninja is an invoicing app, not an accounting app. To track that in the app I suggest creating an invoice and immediately marking it as paid. You may want to use an integrator to automate it.