Diagnosis
The subscription generator is set to an unknown mode.

System Response
The 'Update' mode and the 'Append' mode is currently supported forsubscriptions generators.

• In 'Update' mode the generator creates and removes subscriptions and
their assignments to sites according to the generator logic.

• In 'Append' mode subscriptions and their assignments to sites are only
created but not taken away.
For the given subscription generator the mode is not defined or set toan unknown state.

Procedure
Check the subscription generator settings in the AdministrationConsole. If no other solution is possible the subscription generatorhas to be created again.