ChangeBilling effectClient status
Paid → paidPrice swaps at the next renewal. No charge today, no proration.Active
Paid → freeStripe subscription cancelled immediately.Active (free)
Free → paidClient emailed a checkout link. Charged when they complete it.Awaiting payment until paid
Free → freeNone.Active

Change a package from the Subscription panel on the client's record. See Change a client's package.