How to fix the Oracle error ORA-28508: invalid value string for Heterogeneous Services initialization parameter string?

In this post, you’ll learn more about the Oracle ErrorORA-28508: invalid value string for Heterogeneous Services initialization parameter string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-28508: invalid value string for Heterogeneous Services initialization parameter string

Reason for the Error ORA-28508: invalid value string for Heterogeneous Services initialization parameter string

The specified Heterogeneous Services initialization parameter had an invalid value when attempting to connect to a non-Oracle system.

How to fix the Error ORA-28508: invalid value string for Heterogeneous Services initialization parameter string ?

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

Check the Heterogeneous Services and agent documentation to determine acceptable values