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Parallels Business Automation Standard license number can be found in the Provider Control Center interface at Top > Configuration Director > License Manager > Parallels Business Automation Licenses > Management Node in the 'License ID' field (Screen ID: 01.01.14.02.03).
Please have a look at the screenshot, license ID is '0960' in this case.
Please supply it with zeroes after "HSPC." prefix, so that the key number contains eight digits. For this example, the complete key number is HSPC.00000960.
Keywords: hspc hspcomplete hsp complete