I try to use email templates, which seems to be a good idea.
Is there a way to fill in a place holder for proposal, order, invoice & credit number into the subject?
e.g.: Subject: New order [placeholder_order_number]
where [placeholder_order_number] get filled with the real number
In my situation it should be CO1605-0062
What are the placeholder for number of
* proposal
* order
* invoice
* credit
or where can I find it
Thanks for your help!