The following is the ORA-16629 error message, you can learn the cause and solution of the Oracle database error.
ORA-16629 database reports a different protection level from the protection mode
Cause: The actual protection level supported by the standby database is different from the protection mode set on the primary. This is likely caused by the log transport problems.
Solution: Check the database alert logs and Data Guard Broker console logs for more details. Check the log transport status. Make sure at least one standby log transport is supporting the protection mode and that the network to the standby has no problems.
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