Jobs of type WRI cannot be scheduled

Hi,

While trying to schedule a Write Job (of archiving object MM_MATNR), the job is getting cancelled with a job log: Jobs of type WRI cannot be scheduled. Error message number is BA307. When I searched in google, it said that it is an authorization issue and that the user must have authorization to S_PROGRAM. But it is not showing up in the SU53 dump. Please advice.

Thanks and Regards,

Anuj