Cause

In the parts database to be checked a part was found where no information for the Order number property is entered.

Solution

1. In the parts management mark the line with the message in the Messages tab and select the Go to popup menu item for this line.
   The respective part is marked in the tree view of the parts management.
2. Bring the Properties tab to the front.
3. In the property table in the hierarchy level General enter the required information in the value field of the property Order number.
4. Click [Apply].
5. If required, start a new check run.
6. Close the parts management and perform a parts data synchronization.