Cause

In the parts database to be checked a part was found where a drilling pattern was entered which Eplan cannot find.

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 Manufacturing tab to the front.
3. Click [...] in the Name (drilling pattern) table column.
4. Select the required drilling pattern from the selection dialog opened.
5. Click [Apply].
6. If required, start a new check run.
7. Close the parts management and perform a parts data synchronization.