Cause

In the parts database to be checked a part was found where no trade is entered.

Solution

1. In the message management dialog mark the line with the message and select the Properties popup menu item.
   
   The Parts management dialog is opened, the respective part is already marked in it.
2. Bring the Properties tab to the front.
3. In the property table open the hierarchy level Trades.
4. In the value field activate the check box on at least one of the listed trade properties.
5. If the part has subtrades, open the hierarchy levels of the corresponding subtrades with the indexed properties and enter a designation at the desired property.
6. Click [OK].
7. Close the parts management, save the modified data, and carry out a parts synchronization.
8. If required, start a new check run.