How to fix the Oracle error ORA-23652: The oldest SCN could not be updated at Apply string?

In this post, you’ll learn more about the Oracle ErrorORA-23652: The oldest SCN could not be updated at Apply string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-23652: The oldest SCN could not be updated at Apply string

Reason for the Error ORA-23652: The oldest SCN could not be updated at Apply string

The oldest SCN was not updated before the switch was performed.

How to fix the Error ORA-23652: The oldest SCN could not be updated at Apply string ?

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

Make sure Apply is running and the switch package version is the same at both databases.