If you wish to produce a Report to show below new deals:
1. New Subscriptions
2. New Products added to existing Subscriptions
Here is our suggestion:
1) For a brand new Subscription, you can use Subscription.CreatedDate as a filter, setting it, for example, between 1 May and 31 May, for all new Subscriptions that are created in May.
2) If you use an Amendment to add a new Product to an existing Subscription, you can configure the filter like Amendment.Type = NewProduct.
If you wish to include further details such as Charge Name or Description, please create a report similar to below, showing fields such as InvoiceTem.ChargeAmount, InvoiceTem.ChargeName, Invoice.SubscriptionNumber, and then use vlook to join the 2 reports.