I managed to figure out how to add banking details on the sales invoice using custom fields. However, there is a paragraph spacing between the fields on the invoice and does not look nice and/or professional.
How do I get rid of the paragraphs between the fields?
Put all the details into one custom field?
You can also use a custom theme to control placement of your custom fields. See https://www.manager.io/guides/17100.
You should also experiment with adding custom fields to your Business Details under Settings instead of Sales Invoices. The presentation is different and may meet your needs.
thank you