We have several customers who have weekly orders, that will pay in a single combined payment at the end of the month.
Currently we use quickbooks, and invoice them like so, referencing the shopify order numbers.
1/1 - #7012
1/8 - #7013
1/15 - #7014
1/22 - #7015
1/29 - #7016
I'm wondering if there is an app that will allow me to either make custom invoices, or combine multiple orders into a single invoice.
We do not want to use the same order for all month.