Copy New and Edit Pages:

Do not edit checked out copies ( Bug 1162251).

Help Sub Sections:

Field Descriptions
Barcode Number entering from an external numbering structure
Barcode Number - Autogenerate
Copy Serial Numbers integrated in Barcode Numbers

The following table provides descriptions for the fields located on the Copy New and Edit Pages.

Field	Description
Barcode Number	Unique code identifying a copy, must be all alphabetic and/or numeric, maximum 20 characters. This field is required because it identifies the copy in Circulation forms (Check Out, Check In, Hold). See also: Understanding barcodes
Description	Short text describing characteristics for a copy.
Status	Only in Edit Copy. See also: Understanding bibliography status changes

Barcode Number entering from an external numbering structure:

Enter Barcode Number manually, or use a barcode scanner if the copy is already labeled,
Submit (Autogenerate unchecked).

By submitting a new copy with the Autogenerate option for the Barcode Number field checked, OpenBiblio tries to assign a unique Barcode Number automatically, following the rules from the internal numbering structure:

First part is calculated from the bibid by which the bibliography is internally known to OpenBiblio, with leading zeros. Default length is 5 digits, this can be changed by editing the value for $nzeros in biblio_copy_new.php
Last part is equal to the internal copyid of the copy.

Copy Serial Numbers integrated in Barcode Numbers facilitate entering copy information from a simple card file when unique numbers were not assigned, only serial numbers for multiple copies of a title.
The Barcode Lookup page has information on Recognizing Copy Serial Numbers in Autogenerated Barcode Numbers.
When adding copies marked with serial number identification to a Bibliography:

Check Autogenerate,
submit new copies until Copy Serial Number corresponds with autogenerated Barcode Number last digit(s),
delete permanently unavailable copies, edit status for others.