Email templates in Zoho Books let you customise unique, customer-centric notification emails. Invoice notification emails are the invoice related emails sent to your customers.
To customise the invoice notification email template:
Insight: You can add the desired placeholders by placing the cursor where you want to add them and clicking the Insert Placeholder dropdown from the toolbar. In the dropdown a list of placeholders will be displayed, from which you can select your desired placeholder.
and GST filing.