Subscriptions that were created from OBAS are locked for synchronization in Plesk

Question

Some subscriptions in Plesk 11.5 are locked for synchronization after upgrade from Plesk 11.0.9:

The subscription is locked for synchronization: It is excluded from syncing with the service plan because the subscription parameters were customized

Why those subscriptions are locked for synchronization in Plesk although they are not based on any hosting plan?

Why subscriptions created via OBAS in Plesk 11.5 are locked for synchronization but in Plesk 11.0.9 they have status 'Synchronized'?

Answer

This is an expected behavior since Plesk 11.5

In terms of Plesk the Subscription could be synced:

1. With Service Plan presented in Plesk (if there was no custom changes after creation)
2. With itself (when the Subscription is created in Plesk without Service Plan. The limits are set manually during the subscription creation)

When Subscription is created via OBAS, it is always marked as "Locked for synchronization" because it is not based on any Plesk Service Plan (but on an OBAS Hosting Plan).