Ive searched in forum, but not found anything.
Is it possible to get invoices ordered by client's custom ID when we want to print them? When we print invoices, we would need very much get them ordered by this field, as we pair them with envelopes and cheques printed from other source. Now we have to sort them manually which is veryyyyyyy time consuming...
As a workaround, I suggest you use envelopes with transparent windows. Then, the client's address printed on the invoice can be used as the address for the envelope. You just need to play arround with the address positioning on the invoice template (System > Customization > Invoices)