The database user for the connection pool named |apex|rt|, is not able to proxy to the schema named XXXX. This could be a configured restriction on the maximum number of database sessions or an authorization failure.

The database user for the connection pool named |apex|rt|, is not able to proxy to the schema named XXXX. This could be a configured restriction on the maximum number of database sessions or an authorization failure. Solution :- alter user XXXXX grant connect through APEX_REST_PUBLIC_USER;