You may need to assign a policy in Juniper Security Director Cloud if:
A new policy is created for the device and you imported the policy again.
The existing policy is obsolete.
The policy was updated directly on the device and you imported the policy again.
The policy was not deployed after it was imported from the device.
When you import a new policy and assign, deploy job fails with the below error: Error Type: Application Error Error while converting rule: test of Policy: vSRX22-1. Error message: Could not deploy vSRX-1. To deploy vSRX-1, you will need to deploy both vSRX22 and vSRX. Reason: Device needs to be unassigned from vSRX to be successfully assigned to vSRX-1.