The data_parameter constant will not work when used in conjunction with run_report_object() . I am getting this message while migrating oracle forms 6I to oracle forms 12C. Please give me solution for this.
As far as I know, DATA_PARAMETER can't be used in RUN_REPORT_OBJECT Forms versions newer than 10g (though, it can be used in RUN_PRODUCT).
See if you can use TEXT_PARAMETER instead.
See if Integrating Oracle Reports with Oracle Forms (for Oracle Fusion Middleware 12c) helps.
Furthermore, there's another document within the Fusion Middleware documentation library you could/should read (if you didn't do it yet): “Oracle Forms: Upgrading Oracle Forms 6i to Oracle Forms 12c".