Final answer:
To add a legal fine print to the bottom of all invoices without using the customer message field, the best option is to edit the invoice template to include a custom footer section.
Step-by-step explanation:
The best option to add a legal fine print to the bottom of all invoices without using the customer message field is to edit the invoice template to include a custom footer section. This way, you can have a dedicated space for the legal fine print without affecting the customer message. By customizing the invoice template, you can ensure that the legal fine print appears automatically in every invoice you generate.
Adding the legal fine print as a separate document or manually adding it to each invoice as a separate line item would be time-consuming and prone to errors. Combining the legal fine print with the thank you message in the customer message field may not be ideal, as it could potentially confuse or overwhelm the recipient.