The "Subscription ID Card" button is a feature in Odoo that allows users to generate and print a subscription ID card directly from the subscription sale order. This card typically includes details about the subscription, such as the subscriber's name, subscription ID, and other relevant information.

Currently, the "Subscription ID Card" button typically generates and prints one card at a time for the selected subscription sale order.

Yes, you can reprint a subscription ID card by navigating back to the subscription sale order and clicking the "Subscription ID Card" button again. The system will generate a new ID card which you can print.