If you have administrator rights in Amberlo you can easily to turn on/off the function "Use additional sales date in invoices":
1. Go to the General Settings and click Bills in the left-hand menu.
2. Click the tab INVOICES.
3. Mark (or unmark the checkbox "Use additional sales date in invoices".
4. Click the button Save:
Note: Be sure you selected properly company (or branch) if you have more than one company (or branch).
For more information how to set other Invoices settings click here.
We hope this will help to start using it smoothly. If you have any questions or feedback, please feel free to contact us via email@example.com. We are always happy to hear from you!