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Barcode/Request Number Details:

1.) Set Request number "Length" to the length of the new barcode layout. i.e. prefix + digits

2.) Set "Request Number Mode" to "Laboratory Sequence"

3.) preLink to create a SQL Sequence per site, in SQL Server.

4.) The Lab must set a prefix per site. All prefixes must be the same length.

5.) Set Request number "Numeric Only" to "No"

6.) Set Request number "Alpha Numeric Expression" to a regular expression, e.g. ^([A-Z]{2})([1-9]{1})([0-9]{6})$. This will force two A-Z characters, then one 1-9 number, then six 0-9 number.

Administration>General>Site Admin>Site Management

Set a prefix per site in the 'prefix code' field.