Follett VERSION 6.00 - Manual (Page 306)

04/04 306 Cataloging
If your format does include fill character(s), enter the alpha or numeric
character that is used. Typically, the fill character is a leading zero.
Enter the fill character used by
the records you're importing.
After entering the fill character, click Finish.
6. Once you've entered all the information that the Barcode Wizard needs to
rebuild your barcodes, a message appears informing you that the preview
process is ready to begin. Click OK to continue. A progress dialog appears.
When the preview process is complete, close the progress dialog. If any
errors were encountered, the application generates an exception report and
prompts you to review it. Examine the exception report carefully. If you need
to make modifications to the import file or your barcode format before you
can proceed with the import, we recommend that you print the exception
report and save it when prompted.
Note: There are three types of exception messages: notes, warnings, and
errors. While messages marked Note and Warning" are primarily
informational (e.g., a field was truncated, a duplicate record skipped),
Error" conditions may indicate a more serious problem.
For example, an Error" is created if an incoming copy's material
number is longer than the barcode format's item number. Since the
barcode can't be rebuilt, the copy is skipped. One or two Error"
statements of this sort could mean that you have a few nonconforming
items that need to be rebarcoded. Numerous Error" statements could
mean that your barcode format isn't defined correctly or that your
import file contains more than one barcode symbology.
A message appears, asking if you want to proceed with the import. To import
your records, click Yes. The import progress dialog appears.
Warning: Once you start the actual import, you cannot reverse any changes
that the import process makes to your database. Canceling the
process only prevents additional changes from being made.