In this post, you’ll learn more about the Oracle ErrorORA-12686: Invalid command specified for a service with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-12686: Invalid command specified for a service
Reason for the Error ORA-12686: Invalid command specified for a service
An operation which does not exist was specified for a native service.
How to fix the Error ORA-12686: Invalid command specified for a service ?
You can fix this error in Oracle by following the below steps
This is a programming error and should not normally be visible to the user. If the error does appear, contact Oracle Customer Support.