Update membership when order is done in WooCommerce

Already post as a reply, more correct to ask it separately:

I’ve one product with physical shipping and I wish to let customer access website directly before the order has been completed.
So I want to change the default setting that give access to the customer only after the order is completed.

The other reason I need this is that I must use offline payment (payment only via invoices) but don’t want to make the customer wait to have access. I need to let user have access directly after order, even before payment (=> open in PMP) but with a one month one-time access before order completed. Order must be paid in the month to let user continue to have access during rest of the year (yearly subscription).

How can I manage that? Let PMPro-WooCommerce addon activate PMPro when order is made (status “review”? or sthing like that? to open membership)
Changing the code about the reference status for activating the PMP account?

Thanks a lot in advance

https://wordpress.org/plugins/pmpro-woocommerce/