In this post, you’ll learn more about the Oracle ErrorORA-26706: cannot downgrade capture process with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-26706: cannot downgrade capture process
Reason for the Error ORA-26706: cannot downgrade capture process
An attempt was made to downgrade a capture process that has a higher version than the downgrade release version.
How to fix the Error ORA-26706: cannot downgrade capture process ?
You can fix this error in Oracle by following the below steps
Drop the capture process after capture has finished consuming all the redo logs before attempting the downgrade.