How to fix the Oracle error TNS-12663: Services required by client not available on the server?

In this post, you’ll learn more about the Oracle ErrorTNS-12663: Services required by client not available on the server with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-12663: Services required by client not available on the server

Reason for the Error TNS-12663: Services required by client not available on the server

Cause: Service(s) that was (were) required by the client process were not available on the server process.

How to fix the Error TNS-12663: Services required by client not available on the server ?

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

Action: Configure the server with the services required by the client (best solution) or delete the requirement from the configuration file of the client (least secure).