How to fix the Oracle error ORA-16503: cannot exceed the maximum number of databases in this configuration?

In this post, you’ll learn more about the Oracle ErrorORA-16503: cannot exceed the maximum number of databases in this configuration with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-16503: cannot exceed the maximum number of databases in this configuration

Reason for the Error ORA-16503: cannot exceed the maximum number of databases in this configuration

The Data Guard broker configuration already contained the maximum number of databases that could be configured and managed by the broker.

How to fix the Error ORA-16503: cannot exceed the maximum number of databases in this configuration ?

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

Select and remove an existing database from the broker configuration, then reissue the command to add another database to the configuration. Note that when COMPATIBLE is set lower than 11.2.0.0.0, the broker can configure and manage up to 10 databases. When COMPATIBLE is set to 11.2.0.0.0 or higher, this limit is increased to 31.