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.