Hello,

I would like to inform you that when an invoice is initially printed, it gets saved in the attachments and subsequently loads in the preview. However, any modifications made to the invoice won't reflect in the preview of previously generated invoices.

So to change the attached invoice kindly follow the below steps:-

Accounting -> Customer -> Invoice -> Select Invoice -> Delete attach invoice -> Again print.

I hope you find this information helpful.

Thank you and have a nice day