Release strategy in purchase requisition

Hi gurus,

We have created the process to release strategy for purchase requisition linked to the cost center.

But when we created a new cost center these still not have the new strategy created  and the system allows open a purchase requisition to this cost center as released it.

So we would like to this purchase requisition was open as a blocked when it was created manually and there is no release to these cost center.

Is there any possibility?

Regards,

Marina