Not quite Joe91. I’m doing the invoices in Manager’s invoicing module with only the customising that the tickbox formatting page allows (basically, adding a logo). That produces the invoice as a PDF file.
The aim then is to send the PDF file as an attachment to an email, and it’s that email I’m trying to format. I’ve selected “HTML format” in Email Settings and then I’m putting HTML code into the Email Template.
I’m trying various ultra-simple bits of test code to try to understand what works and what doesn’t. At the moment the end-results are so inconsistent that I’ve failed to establish a proper pattern. Still working on it.