# Sale Subscription Asset Module

The sale subscription asset module adds the notion of asset to the sale subscription module.

Two fields are added to the Service:

> - Lots: All the lots that can be used when providing this service

> - Available Lots: A subset of the preceding field displaying the available lots

On the Subscription Line, it is possible to specify the lot to use. When the subscription will be running this field will become required for service with lots.

On the Lot, the field Subscribed will point to the line of the subscription currently using this lot.