Subscribers changing plan.
WHAT TO ALLOW
Upgrading, immediately Downgrading, at the next renewal Pausing, where appropriate
UPGRADING
Should take effect immediately.
Charge the difference, prorated, or start a new period.
Whichever you choose, state it.
DOWNGRADING
Usually at the next renewal, since they paid for the current period.
Immediate downgrade with a refund is more generous and more complicated.
WHAT TO AVOID
Making changes require contacting you Unclear proration producing unexpected charges
THE PRORATION POINT
Customers dispute charges they do not understand.
Show the calculation before confirming.
PAUSING
Reduces cancellations from temporary circumstances.
Set a maximum duration.
WHAT TO TEST
Each change type, confirming billing and access both behave correctly.
WHAT TO RECORD
The change and when it takes effect, visible to the customer.