Possible solution might be to schedule the Receiving Transaction Processor on a daily basis.
Or if Procurement is critical and core to your organisation activities you can schedule it each hour.
Check the value of profile option "RCV:Processing Mode" at User / Responsibility / Site levels.
If its set as 'Online' then 'Receving Transaction Processor' will not be triggered.
If its set as 'Immediate' the 'Receving Transaction Processor' will be triggered automatically.