Here you can enter a project number that will be updated automatically on all order rows. When you enter a project number in this field, this project number will be entered by default when coding the order rows. If you change project number on an existing order, a question appears asking if all order rows shall be updated with the new project number.
If you have activated the setting Manage purchase/manufacturing on project for parts, under the Inventory tab in the Settings procedure, the message below is shown when you enter a project number.
Message during purchase on project.