How to fix the Oracle error ORA-03173: Standby may not be synced with primary?

In this post, you’ll learn more about the Oracle ErrorORA-03173: Standby may not be synced with primary with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-03173: Standby may not be synced with primary

Reason for the Error ORA-03173: Standby may not be synced with primary

ALTER SESSION SYNC WITH PRIMARY did not work because either the standby was not synchronous or in a data-loss mode with regard to the primary, or the standby recovery was terminated.

How to fix the Error ORA-03173: Standby may not be synced with primary ?

You can fix this error in Oracle by following the below steps

Make the standby synchronous and no-data-loss with regard to the primary. Make the standby recovery active.