CPQ Order Closure

Hi all

Context: we create CPQ Order and submit it to FOM Sales Order. FOM notifies back the fulfillment line status.

We have this requirement: when all CPQ transaction lines reach a final status, we must "automatically" move the transaction/order to status Closed.

According to CPQ functions it seems that transaction/order status is managed only "manually", via Steps configuration.

It seems therefore not possible to automatically trigger the order's change status via configuration. Do you confirm?

Is it really mandatory, to accomplish this requirement, to implement/customize BML code?

Is there any template/white paper to facilitate/accelerate this implementation?