Hello Odoo Community,

I'm just new user with Odoo and I am facing an issue with the Sales application regarding products managed by lot/serial numbers.

I cancelled a Sales Order, but the related serial numbers are still reserved. The Sales Order itself is cancelled, yet the stock picking remains in status “Done”, and I cannot cancel or unreserve it.

Because of this, the serial numbers are not being released back into inventory, which prevents me from reusing them in a new order.

👉 My question: How can I correctly reintegrate these serial numbers into the inventory so that I can restart the sales process?

Thanks in advance for your help!