A license migration is applicable in case you convert the use rights you have obtained for a specific (suite of) product(s) from one license metric to another license metric. An example of such a license migration could be that you convert your existing Processor licenses for the Oracle Database Enterprise Edition into Named User Plus licenses Oracle Database Enterprise Edition. A license migration can only be done if your existing – to be migrated licenses – are having an active technical support contract; licenses without an active technical support contract cannot be migrated from one metric to another metric.
A license migration is not a default right that is specified in your Oracle Master Agreement. When you submit such a request towards Oracle, Oracle must approve the migration and may require specific terms to apply (e.g. the requirement to continue the payment of technical support fees for the migrated licenses for the period of X years). Under normal circumstances, Oracle would approve such a migration, in order to grant its end users the opportunity to continue to leverage its historical investments made to comply with its current licensing needs.
A license migration results in new licenses, a new ordering document (called the ‘Migration Ordering Document’) and typically does not require the payment of additional license fees. The moment the license migration is effectuated, a new technical support contract is put in place for the upcoming 12 months; a credit for unused support is being applied for the remaining period of technical support as paid for the migrated licenses.
A license migration can be a so called “ratio based” migration, a “list to list” or a “net to net” migration. In case of a ratio based migration, a specific ratio is applied to convert the licenses from one metric to another metric (e.g. 1 Processor license Oracle Database Enterprise Edition = 50 Named User Plus licenses Oracle Database Enterprise Edition). In case of a net to net migration, a comparison is made between the net value paid in the past vs the net value of the new to be obtained licensed. In case there is a difference between these two fees, a certain license fee may need to be paid (subject to commercial negotiations).
As a note:
A conversion from Named User Plus to Processor licenses, is NOT considered to be a license migration, but a license upgrade. This, since a limited amount of user licenses is converted into a Processor license which grants an unlimited number of users access to the software licensed by Processor. Since such conversion results in an expansion of the use rights grant, this conversion is classified as a license upgrade.