Additional Invoice Terms
1) Add additional invoice terms here: and assign these terms to a User record. The special terms will then appear on their invoice:
2) Then Add Information using the WYSIWYG to apply a message: If the customer is assigned "Additional Invoice Terms" in his User profile, this message will appear on his payment invoice:
3) How to assign Invoice Terms to a customer: Under Users/General Tab add Invoice terms to "Selected" area by using the picker.