MRP - How to set PR to be firmed after released?

Dear SAP Experts,

I have a question related to MRP.

In my client, the MRP run will create PR directly without Planned Order.

The problem is, the MRP will delete the PR if the reservation is cancelled;

even if the PR is already released.

Is there any possible way to automatically set the PR to be firmed/fixed after it is released?

The purpose is so that the MRP will not delete the PR, even if the reservation is cancelled.

I really need your advice for this matter.

Thank you very much.

Regards,

Rumata