Alot of what i read when I've been searching for help on customising invoices relates to being able to customise the fieds of our invoices. I'm refering to the actual invoice template where we enter ...
I agreee with Sandygmd, we send sometimes hundreds of unique/cash sale invoices a day and want to integrate with starship courier tracking. All we need to do to complete this is have 1 extra/custom field on the invoice form we can use for adding the customer's email address. All our other fields are in use. Surely this is easily possible. If you want your software to be able to sync with other add on software you need to make it more customisable.
Thanks