Values:
STATE_UNSPECIFIED (0):
Default state. Don't use directly.
ACTIVE (1):
Recommendation is active and can be applied.
Recommendations content can be updated by
Google.
ACTIVE recommendations can be marked as CLAIMED,
SUCCEEDED, or FAILED.
CLAIMED (6):
Recommendation is in claimed state.
Recommendations content is immutable and cannot
be updated by Google.
CLAIMED recommendations can be marked as
CLAIMED, SUCCEEDED, or FAILED.
SUCCEEDED (3):
Recommendation is in succeeded state.
Recommendations content is immutable and cannot
be updated by Google.
SUCCEEDED recommendations can be marked as
SUCCEEDED, or FAILED.
FAILED (4):
Recommendation is in failed state.
Recommendations content is immutable and cannot
be updated by Google.
FAILED recommendations can be marked as
SUCCEEDED, or FAILED.
DISMISSED (5):
Recommendation is in dismissed state.
Recommendation content can be updated by Google.
DISMISSED recommendations can be marked as
ACTIVE.
