As only the first nine digits are used to identify the token, if the last digit does not match this should not cause any issues.
Example: The physical token serial is 1234567890. The Export.DPX received from 'Shipping' and "Defender Import" process both identify the token as 1234567899. Continue with the import and 'Test' the token. This should be successful.
The numbers may match, but the tenth digit does not need to match.