"Is and invalid Job ID" Job Registration AX 2012

Hi everybody, I am having a problem in the Production control module and was wondering if any of you would have any ideas. When I use a personnel number to login and start a job registration I get the error ’is an invalid job ID’. I cannot seem to find the right configuration in the Human Resources and Production Control Modules to clear this error or to be able to clock in do a job registration. Any Ideas? Go to Production Control->Periodic-> Manufacturing Execution-> and click Job Registration, select a resource in the ‘select resource and action’ window and click the ‘Open production unit’ button, enter a personnel number and login.

Your time will be greatly appreciated,