The upsell feature on the subscription object allows to make a quotation for a new subscription product.

This works ONLY when you want to add a product for the current invoicing period (the system will compute a price for the current invoicing period that you can then invoice and when the quotation is validated the new product is eligible for the next invoicing period)

Is there a way to add a product for a next  invoicing period withoit doing everything manually ?

regards

Maurice